Debugging randomly hanging on real iOS devices #63869
Description
Steps to Reproduce
- Add something like this to pubspec.yaml:
assets:
- assets/images/
- assets/images/icons/
- assets/audio/
- Add
.DS_Storefiles to these directories by viewing them in MacOS Finder. - Run
flutter run --verboseon a real iOS device. - Wait a very long time for
Installing and launchingto finish.
Expected results:
Finishes within seconds.
Actual results:
Appears to hang completely, but will complete after many minutes.
Workaround:
Run find . -name '.DS_Store' -type f -delete inside the project to clear .DS_Store files.
With .DS_Store files:
[ +12 ms] Syncing files to device Virgo...
[ +2 ms] Scanning asset files
[ +4 ms] <- reset
[ ] Compiling dart to kernel with 0 updated files
[ +2 ms] <- recompile package:app/main.dart 308de057-2701-4229-b6d2-f2b002a70aaa
[ ] <- 308de057-2701-4229-b6d2-f2b002a70aaa
[ +90 ms] Updating files
[+237303 ms] Error writing "build/flutter_assets/assets/images/icons/.DS_Store" to DevFS: HttpException: , uri = http://localhost:51394
[ ] trying again in a few - 9 more attempts left
[ ] Error writing "build/flutter_assets/assets/images/.DS_Store" to DevFS: HttpException: , uri = http://localhost:51394
[ ] trying again in a few - 9 more attempts left
[ +524 ms] DevFS: Sync finished
[ ] Syncing files to device Virgo... (completed in 237,929ms, longer than expected)
[ ] Synced 12.4MB.
[ +1 ms] <- accept
[ +2 ms] Connected to _flutterView/0x10a831e20.
After running find . -name '.DS_Store' -type f -delete inside the project:
[ +6 ms] Syncing files to device Virgo...
[ +1 ms] Scanning asset files
[ +4 ms] <- reset
[ ] Compiling dart to kernel with 0 updated files
[ +1 ms] <- recompile package:app/main.dart 03188f56-7ea7-4f86-b19a-7ee35f1623e5
[ ] <- 03188f56-7ea7-4f86-b19a-7ee35f1623e5
[ +73 ms] Updating files
[ +339 ms] DevFS: Sync finished
flutter doctor -v
[✓] Flutter (Channel stable, 1.20.2, on Mac OS X 10.15.6 19G2021, locale en-US)
• Flutter version 1.20.2 at /Users/james/Development/flutter
• Framework revision bbfbf1770c (2 days ago), 2020-08-13 08:33:09 -0700
• Engine revision 9d5b21729f
• Dart version 2.9.1
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at /Users/james/Library/Android/sdk
• Platform android-29, build-tools 29.0.2
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 11.6)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.6, Build version 11E708
• CocoaPods version 1.9.0
[✓] Android Studio (version 3.6)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 46.0.1
• Dart plugin version 192.8052
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
[✓] VS Code (version 1.48.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.13.2
[✓] Connected device (2 available)
• Virgo (mobile) • 00008030-000848D11EF0802E • ios • iOS 13.6
• iPhone SE (2nd generation) (mobile) • CC0CE70B-2C12-475B-BFAC-563926246D4D • ios • com.apple.CoreSimulator.SimRuntime.iOS-13-6 (simulator)
• No issues found!