Linux tool_tests_commands is 2.00% flaky #186136

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1. fluttergithubbot

   assigned

   bkonyi

   on May 6, 2026
2. fluttergithubbot

   added

   P0Critical issues such as a build break or regressionCritical issues such as a build break or regression

   c: flakeTests that sometimes, but not always, incorrectly passTests that sometimes, but not always, incorrectly pass

   team-toolOwned by Flutter Tool teamOwned by Flutter Tool team

   on May 6, 2026
3. Piinks commented on May 11, 2026

   

   Piinks

   on May 11, 2026

   Contributor

   More actions

   Runtime ~35 minutes, currently suppressed on the dashboard. One of these was a timeout, while the other:

   06:40 +178 ~1: /b/s/w/ir/x/w/flutter/packages/flutter_tools/test/commands.shard/hermetic/widget_preview/preview_manifest/preview_manifest_workspace_test.dart: PreviewManifest - Workspace can handle the addition of new workspace projects before the workspace pubspec is updated
   PathNotFoundException: Cannot open file, path = '/b/s/w/ir/x/t/flutter_tools.LBMTRE/rootWTXTRF/.dart_tool/package_config.json' (OS Error: No such file or directory, errno = 2)
   #0      _checkForErrorResponse (dart:io/common.dart:58:9)
   #1      _File.open.<anonymous closure> (dart:io/file_impl.dart:438:7)
   #2      _rootRunUnary (dart:async/zone_root.dart:48:47)
   #3      _CustomZone.runUnary (dart:async/zone.dart:733:19)
   <asynchronous suspension>
   #4      _FileStreamConsumer.addStream.<anonymous closure> (dart:io/file_impl.dart:223:15)
   <asynchronous suspension>
   
   06:40 +177 ~1 -1: /b/s/w/ir/x/w/flutter/packages/flutter_tools/test/commands.shard/hermetic/widget_preview/preview_manifest/preview_manifest_workspace_test.dart: PreviewManifest - Workspace can handle workspace entries that do not exist
   06:40 +177 ~1 -1: /b/s/w/ir/x/w/flutter/packages/flutter_tools/test/commands.shard/hermetic/widget_preview/preview_manifest/preview_manifest_workspace_test.dart: PreviewManifest - Workspace can handle the addition of new workspace projects before the workspace pubspec is updated [E]
     PathNotFoundException: Cannot open file, path = '/b/s/w/ir/x/t/flutter_tools.LBMTRE/rootWTXTRF/.dart_tool/package_config.json' (OS Error: No such file or directory, errno = 2)
     dart:io  _FileStreamConsumer.addStream.<fn>
     
     This test failed after it had already completed.
     Make sure to use a matching library which informs the test runner
     of pending async work.
     dart:io  _FileStreamConsumer.addStream.<fn>
   
4. fluttergithubbot commented on May 20, 2026

   

   fluttergithubbot

   on May 20, 2026

   ContributorAuthor

   More actions

   [prod pool] flaky ratio for the past (up to) 100 commits between 2026-05-09 and 2026-05-19 is 1.01%. Flaky number: 1; total number: 99.
   One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20tool_tests_commands/28045
   Commit: 4f1439c
   Flaky builds:
   https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20tool_tests_commands/28045

   Recent test runs:
   https://flutter-dashboard.appspot.com/#/build?taskFilter=Linux%20tool_tests_commands
5. fluttergithubbot commented on May 27, 2026

   

   fluttergithubbot

   on May 27, 2026

   ContributorAuthor

   More actions

   [prod pool] flaky ratio for the past (up to) 100 commits between 2026-05-16 and 2026-05-25 is 0.00%. Flaky number: 0; total number: 99.
6. bkonyi

   added 2 commits that reference this issue on May 27, 2026

   [flutter_tools] Fix widget_preview unawaited async write race condition

   ...

   fb546e6

   [flutter_tools] Fix widget_preview unawaited async write race condition

   ...

   fccec6a
7. auto-submit

   closed this as completedin #187177on Jun 1, 2026
8. pull

   added a commit that references this issue on Jun 1, 2026

   [flutter_tools] Fix widget_preview unawaited async write race conditi…

   ...

   35cd15c
9. via-guy

   added a commit that references this issue on Jun 26, 2026

   [flutter_tools] Fix widget_preview unawaited async write race conditi…

   ...

   c7d44e5
10. github-actions commented on Jul 14, 2026

    

    github-actionsbot

    on Jul 14, 2026 – with GitHub Actions

    More actions

    This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.
11. github-actions

    locked as resolved and limited conversation to collaborators on Jul 14, 2026