Repository: flutter
Issue: `flutter run` failed due to permission denied
Labels: tool,t: xcode,P2,team-tool,triaged-tool


When I try to run a newly created flutter app the build fails for iOS simulator referencing the error below. I've been struggling with this for a few days now and any help would be much appreciated.

```
 cp: /Users/george/Desktop/projects/myApp/ios/Flutter/Flutter.podspec: Permission denied
               Command PhaseScriptExecution failed with a nonzero exit code
```


## Steps to Reproduce

1. `flutter create my_app`
2. `cd my_app`
3. `flutter run`

**Expected results:** Build succeeds, demo app opens in simulator.

**Actual results:** Build fails, demo app does not open in simulator.


<summary>Logs</summary>

[pubspec.yaml.txt](https://github.com/flutter/flutter/files/5187983/pubspec.yaml.txt)
[flutterrun--verbose.txt](https://github.com/flutter/flutter/files/5187984/flutterrun--verbose.txt)


`flutter run`

```
Launching lib/main.dart on iPhone 11 in debug mode...
 
Running Xcode build...                                                  
                                                   
Xcode build done.                                            3.7s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **


Xcode's output:
↳
    cp: /Users/george/Desktop/projects/myApp/ios/Flutter/Flutter.podspec: Permission denied
    Command PhaseScriptExecution failed with a nonzero exit code
    note: Using new build system
    note: Building targets in parallel
    note: Planning build
    note: Constructing build description

Could not build the application for the simulator.
Error launching application on iPhone 11.
```

`flutter doctor -v`

```
[✓] Flutter (Channel stable, 1.20.3, on Mac OS X 10.15.6 19G2021, locale en-GB)
    • Flutter version 1.20.3 at /usr/local/Cellar/flutter/sdk
    • Framework revision 216dee60c0 (6 days ago), 2020-09-01 12:24:47 -0700
    • Engine revision d1bc06f032
    • Dart version 2.9.2

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at /Users/george/Library/Android/sdk
    • Platform android-30, build-tools 30.0.2
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.7)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 11.7, Build version 11E801a
    • CocoaPods version 1.9.3

[!] Android Studio (version 4.0)
    • Android Studio at /Applications/Android Studio.app/Contents
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)

[✓] VS Code (version 1.48.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.14.0

[✓] Connected device (1 available)
    • iPhone 11 (mobile) • 034B59B3-8929-4997-B7A1-53E32D065347 • ios • com.apple.CoreSimulator.SimRuntime.iOS-13-7 (simulator)

! Doctor found issues in 1 category.

```

</details>