Issue 1:
iOS doesn't show text controls like autocorrect, copy, paste, cut, etc.

Issue 2:
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================================================================================

C:\Users\Nick>flutter doctor -v
[√] Flutter (Channel beta, v0.9.4, on Microsoft Windows [Version 10.0.17134.376], locale en-IN)
• Flutter version 0.9.4 at C:\Users\Nick\flutter
• Framework revision f37c235c32 (6 weeks ago), 2018-09-25 17:45:40 -0400
• Engine revision 74625aed32
• Dart version 2.1.0-dev.5.0.flutter-a2eb050044

[√] Android toolchain - develop for Android devices (Android SDK 27.0.3)
• Android SDK at C:\Users\Nick\AppData\Local\Android\Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-27, build-tools 27.0.3
• ANDROID_HOME = C:\Users\Nick\AppData\Local\Android\Sdk
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
• All Android licenses accepted.

[√] Android Studio (version 3.2)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 29.1.1
• Dart plugin version 181.5656
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)

[√] VS Code (version 1.28.2)
• VS Code at C:\Users\Nick\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 2.20.0

[√] Connected devices (1 available)
• Lenovo A7020a48 • BE65GAFM7H8HYTS4 • android-arm64 • Android 6.0 (API 23)

• No issues found!

now when i run the demo app , console show me this error..

Launching lib\main.dart on Lenovo A7020a48 in debug mode...
Launching lib\main.dart on Lenovo A7020a48 in debug mode...
Gradle task assembleDebug failed with exit code 1
Exited (sigterm)

Compiler message:
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:243:24: Error: Expected an identifier, but got '{'.
ContainerTextt text, {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:244:5: Error: Expected ';' after this.
Key key,
^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:245:5: Error: Expected an identifier, but got 'this'.
this.alignment,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:245:5: Error: Expected ';' after this.
this.alignment,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:245:9: Error: Expected a class member, but got '.'.
this.alignment,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:245:10: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
this.alignment,
^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:246:5: Error: Expected an identifier, but got 'this'.
this.padding,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:246:5: Error: Expected ';' after this.
this.padding,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:246:5: Error: 'this' is already declared in this scope.
this.padding,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:245:5: Error: Previous declaration of 'this'.
this.alignment,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:246:9: Error: Expected a class member, but got '.'.
this.padding,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:246:10: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
this.padding,
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:247:5: Error: Expected ';' after this.
Color color,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:247:11: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
Color color,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:248:5: Error: Expected ';' after this.
Decoration decoration,
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:248:16: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
Decoration decoration,
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:249:5: Error: Expected an identifier, but got 'this'.
this.foregroundDecoration,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:249:5: Error: Expected ';' after this.
this.foregroundDecoration,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:249:5: Error: 'this' is already declared in this scope.
this.foregroundDecoration,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:246:5: Error: Previous declaration of 'this'.
this.padding,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:249:9: Error: Expected a class member, but got '.'.
this.foregroundDecoration,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:249:10: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
this.foregroundDecoration,
^^^^^^^^^^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:250:5: Error: Expected ';' after this.
double width,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:250:12: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
double width,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:251:5: Error: Expected ';' after this.
double height,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:251:5: Error: 'double' is already declared in this scope.
double height,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:250:5: Error: Previous declaration of 'double'.
double width,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:251:12: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
double height,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:252:5: Error: Expected ';' after this.
BoxConstraints constraints,
^^^^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:252:20: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
BoxConstraints constraints,
^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:253:5: Error: Expected an identifier, but got 'this'.
this.margin,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:253:5: Error: Expected ';' after this.
this.margin,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:253:5: Error: 'this' is already declared in this scope.
this.margin,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:249:5: Error: Previous declaration of 'this'.
this.foregroundDecoration,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:253:9: Error: Expected a class member, but got '.'.
this.margin,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:253:10: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
this.margin,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:254:5: Error: Expected an identifier, but got 'this'.
this.transform,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:254:5: Error: Expected ';' after this.
this.transform,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:254:5: Error: 'this' is already declared in this scope.
this.transform,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:253:5: Error: Previous declaration of 'this'.
this.margin,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:254:9: Error: Expected a class member, but got '.'.
this.transform,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:254:10: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
this.transform,
^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:255:5: Error: Expected an identifier, but got 'this'.
this.child,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:255:5: Error: Expected ';' after this.
this.child,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:255:5: Error: 'this' is already declared in this scope.
this.child,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:254:5: Error: Previous declaration of 'this'.
this.transform,
^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:255:9: Error: Expected a class member, but got '.'.
this.child,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:255:10: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
this.child,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:3: Error: Expected an identifier, but got '}'.
}) : assert(margin == null || margin.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:3: Error: Expected ';' after this.
}) : assert(margin == null || margin.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:3: Error: '' is already declared in this scope.
}) : assert(margin == null || margin.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:244:5: Error: Previous declaration of ''.
Key key,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:4: Error: Expected a declaration, but got ')'.
}) : assert(margin == null || margin.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:6: Error: Expected a declaration, but got ':'.
}) : assert(margin == null || margin.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:8: Error: Expected an identifier, but got 'assert'.
}) : assert(margin == null || margin.isNonNegative),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:22: Error: Expected ')' before this.
}) : assert(margin == null || margin.isNonNegative),
^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:54: Error: Expected '{' before this.
}) : assert(margin == null || margin.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:54: Error: Expected a declaration, but got ','.
}) : assert(margin == null || margin.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:257:8: Error: Expected an identifier, but got 'assert'.
assert(padding == null || padding.isNonNegative),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:257:23: Error: Expected ')' before this.
assert(padding == null || padding.isNonNegative),
^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:257:56: Error: Expected '{' before this.
assert(padding == null || padding.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:257:8: Error: 'assert' is already declared in this scope.
assert(padding == null || padding.isNonNegative),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:8: Error: Previous declaration of 'assert'.
}) : assert(margin == null || margin.isNonNegative),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:257:56: Error: Expected a declaration, but got ','.
assert(padding == null || padding.isNonNegative),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:258:8: Error: Expected an identifier, but got 'assert'.
assert(decoration == null || decoration.debugAssertIsValid()),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:258:26: Error: Expected ')' before this.
assert(decoration == null || decoration.debugAssertIsValid()),
^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:258:69: Error: Expected '{' before this.
assert(decoration == null || decoration.debugAssertIsValid()),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:258:8: Error: 'assert' is already declared in this scope.
assert(decoration == null || decoration.debugAssertIsValid()),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:257:8: Error: Previous declaration of 'assert'.
assert(padding == null || padding.isNonNegative),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:258:69: Error: Expected a declaration, but got ','.
assert(decoration == null || decoration.debugAssertIsValid()),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:259:8: Error: Expected an identifier, but got 'assert'.
assert(constraints == null || constraints.debugAssertIsValid()),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:259:27: Error: Expected ')' before this.
assert(constraints == null || constraints.debugAssertIsValid()),
^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:259:71: Error: Expected '{' before this.
assert(constraints == null || constraints.debugAssertIsValid()),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:259:8: Error: 'assert' is already declared in this scope.
assert(constraints == null || constraints.debugAssertIsValid()),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:258:8: Error: Previous declaration of 'assert'.
assert(decoration == null || decoration.debugAssertIsValid()),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:259:71: Error: Expected a declaration, but got ','.
assert(constraints == null || constraints.debugAssertIsValid()),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:260:8: Error: Expected an identifier, but got 'assert'.
assert(color == null || decoration == null,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:260:21: Error: Expected ')' before this.
assert(color == null || decoration == null,
^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:263:9: Error: Expected '{' before this.
),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:260:8: Error: 'assert' is already declared in this scope.
assert(color == null || decoration == null,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:259:8: Error: Previous declaration of 'assert'.
assert(constraints == null || constraints.debugAssertIsValid()),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:263:9: Error: Expected a declaration, but got ','.
),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:264:8: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
decoration = decoration ?? (color != null ? BoxDecoration(color: color) : null),
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:8: Error: Expected an identifier, but got 'super'.
super(key: key);
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:8: Error: Expected ';' after this.
super(key: key);
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:13: Error: Expected a declaration, but got '('.
super(key: key);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:14: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
super(key: key);
^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:14: Error: Expected ';' after this.
super(key: key);
^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:17: Error: Expected a declaration, but got ':'.
super(key: key);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:19: Error: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
Try adding the name of the type of the variable or the keyword 'var'.
super(key: key);
^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:19: Error: Expected ';' after this.
super(key: key);
^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:19: Error: 'key' is already declared in this scope.
super(key: key);
^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:14: Error: Previous declaration of 'key'.
super(key: key);
^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:22: Error: Expected a declaration, but got ')'.
super(key: key);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:270:23: Error: Unexpected token ';'.
super(key: key);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:280:16: Error: The final variable 'child' must be initialized.
Try adding an initializer ('= <expression>') to the declaration.
final Widget child;
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:296:27: Error: The final variable 'alignment' must be initialized.
Try adding an initializer ('= <expression>') to the declaration.
final AlignmentGeometry alignment;
^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:303:28: Error: The final variable 'padding' must be initialized.
Try adding an initializer ('= <expression>') to the declaration.
final EdgeInsetsGeometry padding;
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:310:20: Error: The final variable 'decoration' must be initialized.
Try adding an initializer ('= <expression>') to the declaration.
final Decoration decoration;
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:310:20: Error: 'decoration' is already declared in this scope.
final Decoration decoration;
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:264:8: Error: Previous declaration of 'decoration'.
decoration = decoration ?? (color != null ? BoxDecoration(color: color) : null),
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:313:20: Error: The final variable 'foregroundDecoration' must be initialized.
Try adding an initializer ('= <expression>') to the declaration.
final Decoration foregroundDecoration;
^^^^^^^^^^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:321:24: Error: The final variable 'constraints' must be initialized.
Try adding an initializer ('= <expression>') to the declaration.
final BoxConstraints constraints;
^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:321:24: Error: 'constraints' is already declared in this scope.
final BoxConstraints constraints;
^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:265:8: Error: Previous declaration of 'constraints'.
constraints =
^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:324:28: Error: The final variable 'margin' must be initialized.
Try adding an initializer ('= <expression>') to the declaration.
final EdgeInsetsGeometry margin;
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:327:17: Error: The final variable 'transform' must be initialized.
Try adding an initializer ('= <expression>') to the declaration.
final Matrix4 transform;
^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:391:1: Error: Expected a declaration, but got '}'.
}
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:243:3: Error: Type 'ContainerTextt' not found.
ContainerTextt text, {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:255:5: Error: Can't infer the type of 'this': overridden members must all have the same type.
Specify the type explicitly.
this.child,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:255:5: Error: The return type of the method 'Container::this' is dynamic, which does not match the return type of the overridden method (#lib1::Key).
Change to a subtype of #lib1::Key.
this.child,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:245:5: Error: This is the overridden method ('this').
this.alignment,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The non-abstract class 'Container' is missing implementations for these members:
'build'.
Try to either
- provide an implementation,
- inherit an implementation from a superclass or mixin,
- mark the class as abstract, or
- provide a 'noSuchMethod' implementation.

class Container extends StatelessWidget {
^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/framework.dart:597:10: Error: 'build' is defined here.
Widget build(BuildContext context);
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/about.dart:281:23: Error: No named parameter with the name 'height'.
Container(height: 18.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/about.dart:405:11: Error: No named parameter with the name 'decoration'.
decoration: const BoxDecoration(
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/about.dart:449:17: Error: No named parameter with the name 'height'.
Container(height: 18.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/about.dart:451:17: Error: No named parameter with the name 'height'.
Container(height: 18.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/about.dart:453:17: Error: No named parameter with the name 'height'.
Container(height: 24.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/bottom_navigation_bar.dart:182:9: Error: No named parameter with the name 'margin'.
margin: EdgeInsets.only(
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/bottom_navigation_bar.dart:204:9: Error: No named parameter with the name 'margin'.
margin: const EdgeInsets.only(bottom: _kBottomMargin),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/bottom_navigation_bar.dart:235:9: Error: No named parameter with the name 'margin'.
margin: EdgeInsets.only(
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:195:15: Error: No named parameter with the name 'padding'.
padding: widget.padding,
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:500:29: Error: The method 'getMinIntrinsicWidth' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing method, or defining a method named 'getMinIntrinsicWidth'.
return math.max(child.getMinIntrinsicWidth(height), minSize.width);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:507:29: Error: The method 'getMinIntrinsicHeight' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing method, or defining a method named 'getMinIntrinsicHeight'.
return math.max(child.getMinIntrinsicHeight(width), minSize.height);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:514:29: Error: The method 'getMaxIntrinsicWidth' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing method, or defining a method named 'getMaxIntrinsicWidth'.
return math.max(child.getMaxIntrinsicWidth(height), minSize.width);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:521:29: Error: The method 'getMaxIntrinsicHeight' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing method, or defining a method named 'getMaxIntrinsicHeight'.
return math.max(child.getMaxIntrinsicHeight(width), minSize.height);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:528:20: Error: Can't use 'constraints' because it is declared more than once.
child.layout(constraints, parentUsesSize: true);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:531:14: Error: Can't use 'constraints' because it is declared more than once.
size = constraints.constrain(Size(height, width));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:528:13: Error: The method 'layout' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing method, or defining a method named 'layout'.
child.layout(constraints, parentUsesSize: true);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:529:44: Error: The getter 'size' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'size'.
final double height = math.max(child.size.width, minSize.width);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:530:43: Error: The getter 'size' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'size'.
final double width = math.max(child.size.height, minSize.height);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:532:51: Error: The getter 'parentData' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'parentData'.
final BoxParentData childParentData = child.parentData;
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:533:74: Error: The getter 'size' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'size'.
childParentData.offset = Alignment.center.alongOffset(size - child.size);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:542:13: Error: The method 'hitTest' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing method, or defining a method named 'hitTest'.
child.hitTest(result, position: child.size.center(Offset.zero));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button.dart:542:45: Error: The getter 'size' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'size'.
child.hitTest(result, position: child.size.center(Offset.zero));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/button_bar.dart:74:11: Error: No named parameter with the name 'padding'.
padding: EdgeInsets.symmetric(horizontal: paddingUnit),
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/card.dart:134:9: Error: No named parameter with the name 'margin'.
margin: margin ?? const EdgeInsets.all(4.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:1452:15: Error: No named parameter with the name 'decoration'.
decoration: ShapeDecoration(
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:1561:18: Error: The method 'hitTest' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing method, or defining a method named 'hitTest'.
return child.hitTest(result, position: Offset(position.dx, size.height / 2));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:1996:9: Error: Can't use 'constraints' because it is declared more than once.
if (constraints.maxWidth.isFinite) {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:2002:13: Error: Can't use 'constraints' because it is declared more than once.
constraints.maxWidth - iconSizes - theme.labelPadding.horizontal,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:1998:9: Error: Can't use 'constraints' because it is declared more than once.
constraints.copyWith(
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:2090:47: Error: Can't use 'constraints' because it is declared more than once.
final BoxConstraints contentConstraints = constraints.loosen();
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:2213:12: Error: Can't use 'constraints' because it is declared more than once.
size = constraints.constrain(paddedSize);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:2215:24: Error: Can't use 'constraints' because it is declared more than once.
size.height == constraints.constrainHeight(paddedSize.height),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:2217:12: Error: Can't use 'constraints' because it is declared more than once.
'${constraints.constrainWidth(paddedSize.height)}');
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:2219:23: Error: Can't use 'constraints' because it is declared more than once.
size.width == constraints.constrainWidth(paddedSize.width),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/chip.dart:2221:12: Error: Can't use 'constraints' because it is declared more than once.
'${constraints.constrainWidth(paddedSize.width)}');
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/data_table.dart:172:52: Error: No named parameter with the name 'width'.
static final DataCell empty = DataCell(Container(width: 0.0, height: 0.0));
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/data_table.dart:415:7: Error: No named parameter with the name 'padding'.
padding: padding,
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/data_table.dart:468:7: Error: No named parameter with the name 'padding'.
padding: padding,
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/date_picker.dart:155:7: Error: No named parameter with the name 'width'.
width: width,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/date_picker.dart:193:11: Error: No named parameter with the name 'padding'.
padding: const EdgeInsets.symmetric(horizontal: 8.0),
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/date_picker.dart:417:11: Error: No named parameter with the name 'decoration'.
decoration: decoration,
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/date_picker.dart:454:13: Error: No named parameter with the name 'height'.
height: _kDayPickerRowHeight,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/date_picker.dart:988:23: Error: No named parameter with the name 'color'.
color: theme.dialogBackgroundColor,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/date_picker.dart:1011:25: Error: No named parameter with the name 'width'.
width: _kMonthPickerLandscapeWidth,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/divider.dart:102:11: Error: No named parameter with the name 'height'.
height: 0.0,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/drawer.dart:387:28: Error: No named parameter with the name 'width'.
child: Container(width: _kEdgeDragWidth)
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/drawer.dart:409:23: Error: No named parameter with the name 'color'.
color: _color.evaluate(_controller),
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/drawer_header.dart:81:7: Error: No named parameter with the name 'height'.
height: statusBarHeight + _kDrawerHeaderHeight,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/dropdown.dart:160:13: Error: No named parameter with the name 'padding'.
padding: widget.padding,
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/dropdown.dart:419:7: Error: No named parameter with the name 'height'.
height: _kMenuItemHeight,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/dropdown.dart:667:9: Error: No named parameter with the name 'padding'.
padding: padding.resolve(Directionality.of(context)),
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/dropdown.dart:694:15: Error: No named parameter with the name 'height'.
height: 1.0,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/expansion_panel.dart:276:13: Error: No named parameter with the name 'margin'.
margin: const EdgeInsetsDirectional.only(end: 8.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/expansion_panel.dart:293:39: Error: No named parameter with the name 'height'.
firstChild: Container(height: 0.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/expansion_tile.dart:148:7: Error: No named parameter with the name 'decoration'.
decoration: BoxDecoration(
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/flexible_space_bar.dart:201:11: Error: No named parameter with the name 'padding'.
padding: EdgeInsetsDirectional.only(
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/floating_action_button.dart:330:18: Error: Can't use 'constraints' because it is declared more than once.
math.max(constraints.minWidth, math.min(constraints.maxWidth, child.size.width)),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/floating_action_button.dart:330:49: Error: Can't use 'constraints' because it is declared more than once.
math.max(constraints.minWidth, math.min(constraints.maxWidth, child.size.width)),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/floating_action_button.dart:331:18: Error: Can't use 'constraints' because it is declared more than once.
math.max(constraints.minHeight, math.min(constraints.maxHeight, child.size.height)),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/floating_action_button.dart:331:50: Error: Can't use 'constraints' because it is declared more than once.
math.max(constraints.minHeight, math.min(constraints.maxHeight, child.size.height)),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/floating_action_button.dart:335:14: Error: Can't use 'constraints' because it is declared more than once.
size = constraints.biggest;
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/floating_action_button.dart:328:13: Error: The method 'layout' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing method, or defining a method named 'layout'.
child.layout(const BoxConstraints(), parentUsesSize: true);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/floating_action_button.dart:330:77: Error: The getter 'size' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'size'.
math.max(constraints.minWidth, math.min(constraints.maxWidth, child.size.width)),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/floating_action_button.dart:331:79: Error: The getter 'size' isn't defined for the class '#lib1::Widget'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'size'.
math.max(constraints.minHeight, math.min(constraints.maxHeight, child.size.height)),
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/grid_tile_bar.dart:120:7: Error: No named parameter with the name 'padding'.
padding: padding,
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/input_decorator.dart:832:45: Error: Can't use 'constraints' because it is declared more than once.
final double inputWidth = math.max(0.0, constraints.maxWidth - (
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/input_decorator.dart:976:52: Error: Can't use 'constraints' because it is declared more than once.
final _RenderDecorationLayout layout = _layout(constraints);
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/input_decorator.dart:978:33: Error: Can't use 'constraints' because it is declared more than once.
final double overallWidth = constraints.maxWidth;
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/input_decorator.dart:1119:12: Error: Can't use 'constraints' because it is declared more than once.
size = constraints.constrain(Size(overallWidth, overallHeight));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/input_decorator.dart:1120:26: Error: Can't use 'constraints' because it is declared more than once.
assert(size.width == constraints.constrainWidth(overallWidth));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/input_decorator.dart:1121:27: Error: Can't use 'constraints' because it is declared more than once.
assert(size.height == constraints.constrainHeight(overallHeight));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/list_tile.dart:907:45: Error: Can't use 'constraints' because it is declared more than once.
final BoxConstraints looseConstraints = constraints.loosen();
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/list_tile.dart:993:12: Error: Can't use 'constraints' because it is declared more than once.
size = constraints.constrain(Size(tileWidth, tileHeight));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/list_tile.dart:994:26: Error: Can't use 'constraints' because it is declared more than once.
assert(size.width == constraints.constrainWidth(tileWidth));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/list_tile.dart:995:27: Error: Can't use 'constraints' because it is declared more than once.
assert(size.height == constraints.constrainHeight(tileHeight));
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/mergeable_material.dart:54:34: Error: Can't use 'key' because it is declared more than once.
return 'MergeableSlice(key: $key, child: $child)';
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/mergeable_material.dart:75:31: Error: Can't use 'key' because it is declared more than once.
return 'MaterialGap(key: $key, child: $size)';
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/mergeable_material.dart:528:13: Error: No named parameter with the name 'decoration'.
decoration: BoxDecoration(
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/mergeable_material.dart:599:11: Error: No named parameter with the name 'decoration'.
decoration: BoxDecoration(
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/page_transitions_theme.dart:116:15: Error: No named parameter with the name 'color'.
color: Colors.black.withOpacity(opacityAnimation.value),
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/paginated_data_table.dart:338:19: Error: No named parameter with the name 'width'.
Container(width: 14.0), // to match trailing padding in case we overflow and end up scrolling
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/paginated_data_table.dart:358:17: Error: No named parameter with the name 'width'.
Container(width: 32.0),
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/paginated_data_table.dart:367:17: Error: No named parameter with the name 'width'.
Container(width: 32.0),
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/paginated_data_table.dart:374:17: Error: No named parameter with the name 'width'.
Container(width: 24.0),
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/paginated_data_table.dart:381:17: Error: No named parameter with the name 'width'.
Container(width: 14.0),
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/paginated_data_table.dart:436:17: Error: No named parameter with the name 'height'.
height: 56.0,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/popup_menu.dart:267:9: Error: No named parameter with the name 'height'.
height: widget.height,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/popup_menu.dart:441:11: Error: No named parameter with the name 'color'.
color: Theme.of(context).highlightColor,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/progress_indicator.dart:224:7: Error: No named parameter with the name 'constraints'.
constraints: const BoxConstraints.tightFor(
^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/progress_indicator.dart:401:7: Error: No named parameter with the name 'constraints'.
constraints: const BoxConstraints(
^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/progress_indicator.dart:551:7: Error: No named parameter with the name 'width'.
width: _indicatorSize,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/refresh_indicator.dart:425:15: Error: No named parameter with the name 'padding'.
padding: _isIndicatorAtTop
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/reorderable_list.dart:430:11: Error: No named parameter with the name 'alignment'.
alignment: Alignment.topLeft,
^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/scaffold.dart:1573:11: Error: No named parameter with the name 'decoration'.
decoration: BoxDecoration(
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/slider.dart:931:7: Error: Can't use 'constraints' because it is declared more than once.
constraints.hasBoundedWidth ? constraints.maxWidth : _preferredTotalWidth,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/slider.dart:931:37: Error: Can't use 'constraints' because it is declared more than once.
constraints.hasBoundedWidth ? constraints.maxWidth : _preferredTotalWidth,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/slider.dart:932:7: Error: Can't use 'constraints' because it is declared more than once.
constraints.hasBoundedHeight ? constraints.maxHeight : _overlayDiameter,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/slider.dart:932:38: Error: Can't use 'constraints' because it is declared more than once.
constraints.hasBoundedHeight ? constraints.maxHeight : _overlayDiameter,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/snack_bar.dart:205:11: Error: No named parameter with the name 'padding'.
padding: const EdgeInsets.symmetric(vertical: _kSingleLineVerticalPadding),
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/snack_bar.dart:289:12: Error: Can't use 'key' because it is declared more than once.
key: key ?? fallbackKey,
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:224:7: Error: No named parameter with the name 'width'.
width: visible ? 1.0 : 0.0,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:270:7: Error: No named parameter with the name 'margin'.
margin: const EdgeInsets.symmetric(vertical: 8.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:289:7: Error: No named parameter with the name 'margin'.
margin: const EdgeInsets.symmetric(vertical: 8.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:360:15: Error: No named parameter with the name 'margin'.
margin: const EdgeInsetsDirectional.only(start: 8.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:347:7: Error: No named parameter with the name 'margin'.
margin: const EdgeInsets.only(top: 16.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:431:11: Error: No named parameter with the name 'margin'.
margin: const EdgeInsets.only(top: 2.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:463:13: Error: No named parameter with the name 'margin'.
margin: const EdgeInsetsDirectional.only(start: 12.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:450:7: Error: No named parameter with the name 'margin'.
margin: const EdgeInsets.symmetric(horizontal: 24.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:484:19: Error: No named parameter with the name 'color'.
color: Colors.grey.shade400,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:491:33: Error: No named parameter with the name 'height'.
firstChild: Container(height: 0.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:493:13: Error: No named parameter with the name 'margin'.
margin: const EdgeInsetsDirectional.only(
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:563:17: Error: No named parameter with the name 'height'.
height: 72.0,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:569:17: Error: No named parameter with the name 'margin'.
margin: const EdgeInsetsDirectional.only(start: 12.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:581:15: Error: No named parameter with the name 'margin'.
margin: const EdgeInsets.symmetric(horizontal: 8.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/stepper.dart:595:13: Error: No named parameter with the name 'margin'.
margin: const EdgeInsets.symmetric(horizontal: 24.0),
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/tabs.dart:106:13: Error: No named parameter with the name 'child'.
child: icon,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/tabs.dart:905:9: Error: No named parameter with the name 'height'.
height: _kTabHeight + widget.indicatorWeight,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/tabs.dart:1221:7: Error: No named parameter with the name 'width'.
width: size,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/text_selection.dart:52:9: Error: No named parameter with the name 'height'.
height: 44.0,
^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/time_picker.dart:769:7: Error: No named parameter with the name 'width'.
width: width,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/time_picker.dart:1571:13: Error: No named parameter with the name 'color'.
color: theme.dialogBackgroundColor,
^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/tooltip.dart:300:19: Error: No named parameter with the name 'decoration'.
decoration: BoxDecoration(
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/two_level_list.dart:199:7: Error: No named parameter with the name 'decoration'.
decoration: BoxDecoration(
^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/material/user_accounts_drawer_header.dart:39:19: Error: No named parameter with the name 'padding'.
padding: const EdgeInsets.only(left: 8.0, bottom: 8.0),
^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:233:7: Error: The class 'Container' has a constructor that takes no arguments.
class Container extends StatelessWidget {
^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:243:3: Error: 'ContainerTextt' isn't a type.
ContainerTextt text, {
^^^^^^^^^^^^^^
file:///C:/Users/Nick/flutter/packages/flutter/lib/src/widgets/container.dart:256:8: Error: Duplicated name: assert
}) : assert(margin == null || margin.isNonNegative),
^
Compiler failed on C:\Users\Nick\Desktop\music\lib\main.dart
Gradle task assembleDebug failed with exit code 1
Exited (sigterm)