flutter_01.log

Flutter crash report.
Please report a bug at https://github.com/flutter/flutter/issues.

## command

flutter --verbose precache --force

## exception

ProcessException: ProcessException: The command failed
Stdout:

Stderr:
error:  cannot delete old /Users/peter/flutter/flutter/bin/cache/artifacts/engine/darwin-x64/FlutterMacOS.framework/Resources
        Operation not permitted
error:  cannot delete old /Users/peter/flutter/flutter/bin/cache/artifacts/engine/darwin-x64/FlutterMacOS.framework/Versions/Current
        Operation not permitted
error:  cannot delete old /Users/peter/flutter/flutter/bin/cache/artifacts/engine/darwin-x64/FlutterMacOS.framework/Headers
        Operation not permitted
error:  cannot delete old /Users/peter/flutter/flutter/bin/cache/artifacts/engine/darwin-x64/FlutterMacOS.framework/Modules
        Operation not permitted

  Command: unzip -o -q /Users/peter/flutter/flutter/bin/cache/artifacts/engine/darwin-x64/FlutterMacOS.framework.zip -d /Users/peter/flutter/flutter/bin/cache/artifacts/engine/darwin-x64/FlutterMacOS.framework

```
#0      RunResult.throwException (package:flutter_tools/src/base/process.dart:171:5)
#1      _DefaultProcessUtils.runSync (package:flutter_tools/src/base/process.dart:458:17)
#2      _PosixUtils.unzip (package:flutter_tools/src/base/os.dart:221:21)
#3      EngineCachedArtifact.updateInner (package:flutter_tools/src/cache.dart:931:30)
<asynchronous suspension>
#4      CachedArtifact.update (package:flutter_tools/src/cache.dart:692:5)
<asynchronous suspension>
#5      Cache.updateAll (package:flutter_tools/src/cache.dart:562:9)
<asynchronous suspension>
#6      PrecacheCommand.runCommand (package:flutter_tools/src/commands/precache.dart:167:7)
<asynchronous suspension>
#7      FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:1157:12)
<asynchronous suspension>
#8      FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:1009:27)
<asynchronous suspension>
#9      AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#10     AppContext.run (package:flutter_tools/src/base/context.dart:149:12)
<asynchronous suspension>
#11     CommandRunner.runCommand (package:args/command_runner.dart:197:13)
<asynchronous suspension>
#12     FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:278:9)
<asynchronous suspension>
#13     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#14     AppContext.run (package:flutter_tools/src/base/context.dart:149:12)
<asynchronous suspension>
#15     FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:234:5)
<asynchronous suspension>
#16     run.<anonymous closure>.<anonymous closure> (package:flutter_tools/runner.dart:64:9)
<asynchronous suspension>
#17     run.<anonymous closure> (package:flutter_tools/runner.dart:62:12)
<asynchronous suspension>
#18     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#19     AppContext.run (package:flutter_tools/src/base/context.dart:149:12)
<asynchronous suspension>
#20     runInContext (package:flutter_tools/src/context_runner.dart:73:10)
<asynchronous suspension>
#21     main (package:flutter_tools/executable.dart:90:3)
<asynchronous suspension>
```

## flutter doctor

```
[✓] Flutter (Channel stable, 2.0.0, on macOS 11.2.1 20D74 darwin-x64, locale en-US)
    • Flutter version 2.0.0 at /Users/peter/flutter/flutter
    • Framework revision 60bd88df91 (10 hours ago), 2021-03-03 09:13:17 -0800
    • Engine revision 40441def69
    • Dart version 2.12.0

[✗] Android toolchain - develop for Android devices
    ✗ Unable to locate Android SDK.
      Install Android Studio from: https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK components.
      (or visit https://flutter.dev/docs/get-started/install/macos#android-setup for detailed instructions).
      If the Android SDK has been installed to a custom location, please use
      `flutter config --android-sdk` to update to that location.


[✓] 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 (not installed)
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/docs/get-started/install/macos#android-setup for detailed instructions).

[✓] VS Code (version 1.53.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.20.0

[✓] Connected device (2 available)
    • macOS (desktop) • macos  • darwin-x64     • macOS 11.2.1 20D74 darwin-x64
    • Chrome (web)    • chrome • web-javascript • Google Chrome 88.0.4324.192

! Doctor found issues in 2 categories.
```