Repository: flutter
Issue: StackOverflowError when building too many widgets
Labels: c: crash,framework,customer: crowd,a: error message,has reproducible steps,P2,found in release: 2.2,team-framework,triaged-framework

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I found a StackOverflowError when running an app on iOS Simulator in debug mode.
This is problematic as it prevent our developers from running the product we are developing on iOS.

## Steps to Reproduce

<!-- You must include full steps to reproduce so that we can reproduce the problem. -->

1. Create a new flutter project
2. Run the following main.dart

<details>

```
import 'package:flutter/material.dart';

void main() {
  runApp(
    ThemeProvider(
      child: MyApp(),
    ),
  );
}

class ThemeProvider extends StatelessWidget {
  const ThemeProvider({
    this.themeCount = 100,
    required this.child,
    Key? key,
  }) : super(key: key);

  final int themeCount;
  final Widget child;

  @override
  Widget build(BuildContext context) {
    final theme = ThemeData.light();

    Widget wrappedChild = child;
    for (int i = 0; i < themeCount; i++) {
      wrappedChild = Theme(data: theme, child: wrappedChild);
    }

    return wrappedChild;
  }
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}
```
</details>

**Expected results:** <!-- what did you want to see? -->

If I run it in release mode or on android emulator, there is no StackOverflowError. I expect to have the same behavior.

**Actual results:** <!-- what did you see? -->
I see a StackOverflowError.

<details>
  <summary>Logs</summary>

<!--
      Run your application with `flutter run --verbose` and attach all the
      log output below between the lines with the backticks. If there is an
      exception, please see if the error message includes enough information
      to explain how to solve the issue.
-->

```
[   +1 ms] executing: xcrun simctl launch 97D74FF4-D850-4B5F-80B9-FFF6DBF1C00F com.example.stackoverflowRepro --enable-dart-profiling --enable-checked-mode --verify-entry-points --observatory-port=0
[ +332 ms] com.example.stackoverflowRepro: 29864
[        ] Waiting for observatory port to be available...
[ +894 ms] Observatory URL on device: http://127.0.0.1:56132/8Z11WG5BTr4=/
[  +45 ms] Caching compiled dill
[ +188 ms] Connecting to service protocol: http://127.0.0.1:56132/8Z11WG5BTr4=/
[ +216 ms] Launching a Dart Developer Service (DDS) instance at http://127.0.0.1:0, connecting to VM service at http://127.0.0.1:56132/8Z11WG5BTr4=/.
[  +78 ms] DDS is listening at http://127.0.0.1:56135/XmI4-JXkw8g=/.
[  +62 ms] Successfully connected to service protocol: http://127.0.0.1:56132/8Z11WG5BTr4=/
[  +20 ms] DevFS: Creating new filesystem on the device (null)
[  +27 ms] DevFS: Created new filesystem on the device (file:///Users/xmdt0309/Library/Developer/CoreSimulator/Devices/97D74FF4-D850-4B5F-80B9-FFF6DBF1C00F/data/Containers/Data/Application/7EB31EF0-F766-4414-932C-29EB87F21E80/tmp/stackoverflow_reprooMhhrG/stackoverflow_repro/)
[   +2 ms] Updating assets
[  +79 ms] Syncing files to device iPhone 12 Pro Max...
[   +1 ms] <- reset
[        ] Compiling dart to kernel with 0 updated files
[   +3 ms] <- recompile package:stackoverflow_repro/main.dart 4fdfa1bf-1a2a-4201-b4dc-40e4958df0e0
[        ] <- 4fdfa1bf-1a2a-4201-b4dc-40e4958df0e0
[  +70 ms] Updating files.
[        ] DevFS: Sync finished
[   +1 ms] Syncing files to device iPhone 12 Pro Max... (completed in 76ms)
[        ] Synced 0.0MB.
[   +1 ms] <- accept
[   +6 ms] Connected to _flutterView/0x7fd7db80a020.
[   +2 ms] Flutter run key commands.
[   +1 ms] r Hot reload. 🔥🔥🔥
[        ] R Hot restart.
[        ] h Repeat this help message.
[        ] d Detach (terminate "flutter run" but leave application running).
[        ] c Clear the screen
[        ] q Quit (terminate the application on the device).
[        ] 💪 Running with sound null safety 💪
[        ] An Observatory debugger and profiler on iPhone 12 Pro Max is available at: http://127.0.0.1:56135/XmI4-JXkw8g=/
[  +76 ms] Activating Dart DevTools...
[ +207 ms] 
           ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
           The following StackOverflowError was thrown building RawGestureDetector(state:
           RawGestureDetectorState#48602(gestures: [tap], excludeFromSemantics: true, behavior: opaque)):
           Stack Overflow

           The relevant error-causing widget was:
             FloatingActionButton
             file:///Users/xmdt0309/Documents/projects/myplace/bug/stackoverflow_repro/lib/main.dart:85:29

           When the exception was thrown, this was the stack:
           #0      RangeError.checkValidRange (dart:core/errors.dart:322:3)
           #1      _IntListMixin.fillRange (dart:typed_data-patch/typed_data_patch.dart:376:16)
           #2      _createTables.build (dart:core/uri.dart:3877:22)
           #3      _createTables (dart:core/uri.dart:3906:12)
           #4      _scannerTables (dart:core/uri.dart:3751:40)
           #5      _scannerTables (dart:core/uri.dart)
           #6      _scan (dart:core/uri.dart:4065:16)
           #7      Uri.parse (dart:core/uri.dart:758:17)
           #8      StackFrame.fromStackTraceLine (package:flutter/src/foundation/stack_frame.dart:230:32)
           #9      MappedIterator.moveNext (dart:_internal/iterable.dart:390:20)
           #10     WhereTypeIterator.moveNext (dart:_internal/iterable.dart:867:20)
           #11     new _GrowableList._ofOther (dart:core-patch/growable_array.dart:198:26)
           #12     new _GrowableList.of (dart:core-patch/growable_array.dart:152:26)
           #13     new List.of (dart:core-patch/array_patch.dart:50:28)
           #14     Iterable.toList (dart:core/iterable.dart:366:12)
           #15     StackFrame.fromStackString (package:flutter/src/foundation/stack_frame.dart:95:10)
           #16     FlutterError.defaultStackFilter (package:flutter/src/foundation/assertions.dart:1021:54)
           #17     DiagnosticsStackTrace._applyStackFilter (package:flutter/src/foundation/assertions.dart:1190:43)
           #18     new DiagnosticsStackTrace (package:flutter/src/foundation/assertions.dart:1165:17)
           #19     FlutterErrorDetails.debugFillProperties (package:flutter/src/foundation/assertions.dart:684:22)
           #20     DiagnosticableNode.builder.<anonymous closure> (package:flutter/src/foundation/diagnostics.dart:2945:17)
           #21     DiagnosticableNode.builder (package:flutter/src/foundation/diagnostics.dart:2948:8)
           #22     _FlutterErrorDetailsNode.builder (package:flutter/src/foundation/assertions.dart:1212:56)
           #23     DiagnosticableNode.emptyBodyDescription (package:flutter/src/foundation/diagnostics.dart:2959:77)
           #24     DiagnosticsNode.toJsonMap.<anonymous closure> (package:flutter/src/foundation/diagnostics.dart:1579:13)
           #25     DiagnosticsNode.toJsonMap (package:flutter/src/foundation/diagnostics.dart:1608:6)
           #26     WidgetInspectorService._nodeToJson (package:flutter/src/widgets/widget_inspector.dart:1499:18)
           #27     WidgetInspectorService._reportError (package:flutter/src/widgets/widget_inspector.dart:919:44)
           #28     FlutterError.reportError (package:flutter/src/foundation/assertions.dart:1107:14)
           #29     _debugReportException (package:flutter/src/widgets/framework.dart:6276:16)
           #30     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4603:9)
           #31     Element.rebuild (package:flutter/src/widgets/framework.dart:4267:5)
           #32     ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4553:5)
           #33     ComponentElement.mount (package:flutter/src/widgets/framework.dart:4548:5)
           ...     Normal element mounting (4 frames)
           #37     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3611:14)
           #38     Element.updateChild (package:flutter/src/widgets/framework.dart:3363:18)
           #39     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4599:16)
           #40     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4746:11)
           ...
           ...
           #4516   ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4553:5)
           #4517   ComponentElement.mount (package:flutter/src/widgets/framework.dart:4548:5)
           ...     Normal element mounting (19 frames)
           #4536   Element.inflateWidget (package:flutter/src/widgets/framework.dart:3611:14)
           #4537   Element.updateChild (package:flutter/src/widgets/framework.dart:3363:18)
           #4538   RenderObjectToWidgetElement._rebuild (package:flutter/src/widgets/binding.dart:1189:16)
           #4539   RenderObjectToWidgetElement.mount (package:flutter/src/widgets/binding.dart:1159:5)
           #4540   RenderObjectToWidgetAdapter.attachToRenderTree.<anonymous closure> (package:flutter/src/widgets/binding.dart:1104:18)
           #4541   BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2535:19)
           #4542   RenderObjectToWidgetAdapter.attachToRenderTree (package:flutter/src/widgets/binding.dart:1103:13)
           #4543   WidgetsBinding.attachRootWidget (package:flutter/src/widgets/binding.dart:937:7)
           #4544   WidgetsBinding.scheduleAttachRootWidget.<anonymous closure> (package:flutter/src/widgets/binding.dart:917:7)
           (elided 11 frames from class _RawReceivePortImpl, class _Timer, dart:async, and dart:async-patch)

           ════════════════════════════════════════════════════════════════════════════════════════════════════
[ +207 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +136 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +136 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +133 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +142 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +139 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +153 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +132 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +134 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +134 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +139 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +138 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +139 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +158 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +169 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +176 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +166 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +174 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +168 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +164 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +153 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +154 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +149 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +169 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +161 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +155 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +160 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +156 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +170 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +160 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +154 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +168 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +45 ms] Activating Dart DevTools... (completed in 5,2s)
[ +128 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +155 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +135 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +145 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +97 ms] The Flutter DevTools debugger and profiler on iPhone 12 Pro Max is available at: http://127.0.0.1:9100?uri=http%3A%2F%2F127.0.0.1%3A56135%2FXmI4-JXkw8g%3D%2F
[  +33 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +122 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +119 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +119 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +118 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +121 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +124 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +121 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +126 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +126 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +136 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +125 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +125 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +116 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +115 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +124 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +122 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +123 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +117 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +118 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +121 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +116 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +121 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +117 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +114 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +118 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +119 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +118 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +120 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +115 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +117 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +132 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +115 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +117 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +116 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +111 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +115 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +107 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +111 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +131 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +108 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +108 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +108 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +110 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +108 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +106 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +104 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +111 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +111 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +106 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +111 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +106 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +106 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +114 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +103 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +107 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +103 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +106 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +104 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +107 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +108 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +106 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +105 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +102 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +102 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +99 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +103 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +108 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +101 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +101 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +101 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +104 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +106 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +101 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +98 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +101 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +103 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +101 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +99 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +99 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +99 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +104 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +115 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +123 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +120 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +105 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +96 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +96 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +96 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +96 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +102 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +97 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +99 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +102 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +96 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +97 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +101 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +122 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +107 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +101 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +99 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +115 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +114 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +103 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +107 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +118 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +120 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +117 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +115 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +144 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +93 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +128 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +122 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +117 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +116 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +128 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +116 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +118 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +121 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +116 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +114 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +139 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +127 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +120 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +114 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +110 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +117 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +118 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +112 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +114 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +114 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +110 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +110 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +110 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +111 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +108 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +107 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +107 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +107 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +108 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +105 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +118 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +115 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +110 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +109 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +106 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +104 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +95 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +83 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +83 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +82 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +83 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +82 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +83 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +103 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +98 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +88 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +100 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +97 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +92 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +81 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +82 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +96 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +99 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +89 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +94 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +91 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +90 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +93 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +82 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +81 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +82 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +80 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +83 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +79 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +78 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +78 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +76 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +77 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +76 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +79 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +77 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +77 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +79 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +80 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +96 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +97 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +95 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +92 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +92 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +91 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[ +113 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +95 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +77 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +75 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +74 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +76 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +76 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +74 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +74 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +75 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +75 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +78 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +74 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +73 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +74 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +77 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +74 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +78 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +73 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +84 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +81 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +87 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +79 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +73 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +72 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +71 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +76 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +86 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +87 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +83 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +71 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +70 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +71 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +78 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +88 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +86 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +73 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +70 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +69 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +70 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +70 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +80 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +76 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +74 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +70 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +72 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +78 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
[  +74 ms] 
           Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 4269 pos 14: 'owner!._debugCurrentBuildTarget == this': is not true.
```

<!--
     Run `flutter analyze` and attach any output of that command below.
     If there are any analysis errors, try resolving them before filing this issue.
-->

```
Analyzing stackoverflow_repro...                                
No issues found! (ran in 2.0s)
```

<!-- Finally, paste the output of running `flutter doctor -v` here. -->

```
[✓] Flutter (Channel unknown, 2.2.2, on Mac OS X 10.15.6 19G2021 darwin-x64, locale fr-FR)
    • Flutter version 2.2.2 at /Users/xxxxxx/fvm/versions/2.2.2
    • Framework revision d79295af24 (11 days ago), 2021-06-11 08:56:01 -0700
    • Engine revision 91c9fc8fe0
    • Dart version 2.13.3

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at /usr/local/share/android-sdk
    • Platform android-30, build-tools 29.0.2
    • ANDROID_HOME = /usr/local/share/android-sdk
    • ANDROID_SDK_ROOT = /usr/local/share/android-sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.4, Build version 12D4e
    • CocoaPods version 1.10.1

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 3.5)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 42.1.1
    • Dart plugin version 191.8593
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)

[✓] VS Code (version 1.57.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.23.0

[✓] Connected device (4 available)
    • Android SDK built for x86 (mobile) • emulator-5554                        • android-x86    • Android 8.1.0 (API 27) (emulator)
    • iPhone 12 Pro Max (mobile)         • 97D74FF4-D850-4B5F-80B9-FFF6DBF1C00F • ios            • com.apple.CoreSimulator.SimRuntime.iOS-14-4 (simulator)
    • macOS (desktop)                    • macos                                • darwin-x64     • Mac OS X 10.15.6 19G2021 darwin-x64
    • Chrome (web)                       • chrome                               • web-javascript • Google Chrome 91.0.4472.77

• No issues found!
```

</details>