[Tool] Fix null check operator crash in currentPackageConfig#188454
Merged
auto-submit[bot] merged 4 commits intoJul 6, 2026
Conversation
The Flutter tool crashes with a `Null check operator used on a null value` in sandboxed or package-managed environments (like NixOS or stand-alone AOT runs) where the isolate does not provide package resolution metadata. This change implements: 1. Removing the strict null assertion (`!`) on `Isolate.packageConfigSync`. 2. Adding a robust fallback: if null, it attempts to resolve `.dart_tool/package_config.json` relative to the current working directory and then the executing script. 3. If all fail, it throws a clean `ToolExit` prompting the user to run `flutter pub get` instead of a raw runtime crash. Fixes flutter#188449
github-actions
Bot
added
the
tool
bkonyi
marked this pull request as ready for review
June 23, 2026 21:49
![gemini-code-assist[bot]](https://avatars.githubusercontent.com/in/956858?s=60&v=4){kind=small}
Contributor
There was a problem hiding this comment.
Code Review
This pull request modifies currentPackageConfig to search the current working directory and script directory for a package configuration file when Isolate.packageConfigSync is null, throwing a ToolExit if none is found. It also adds corresponding unit tests. The review feedback identifies a typo introduced in a TODO comment username.
Contributor
|
An existing Git SHA, To re-trigger presubmits after closing or re-opeing a PR, or pushing a HEAD commit (i.e. with |
chingjun
approved these changes
Jul 6, 2026
flutter-dashboard
Bot
removed
the
autosubmit
Rusino
pushed a commit
to Rusino/flutter
that referenced
this pull request
Jul 7, 2026
…#188454) The Flutter tool crashes with a `Null check operator used on a null value` in sandboxed or package-managed environments (like NixOS or stand-alone AOT runs) where the isolate does not provide package resolution metadata. This change implements: 1. Removing the strict null assertion (`!`) on `Isolate.packageConfigSync`. 2. Adding a robust fallback: if null, it attempts to resolve `.dart_tool/package_config.json` relative to the current working directory and then the executing script. 3. If all fail, it throws a clean `ToolExit` prompting the user to run `flutter pub get` instead of a raw runtime crash. Fixes flutter#188449
This was referenced Jul 7, 2026
This was referenced Jul 7, 2026
auto-submit Bot
pushed a commit
to flutter/packages
that referenced
this pull request
Jul 8, 2026
…12137) Manual roll Flutter from 6995038d96ef to 91939cc4db78 (48 revisions) Manual roll requested by [email protected] flutter/flutter@6995038...91939cc 2026-07-07 [email protected] Roll Skia from 80ae1deed9ed to 075fbe4778d9 (6 revisions) (flutter/flutter#189067) 2026-07-07 [email protected] Bump customer testing version for new registrants (flutter/flutter#189070) 2026-07-07 [email protected] Roll Packages from fc00ceb to 92525f5 (2 revisions) (flutter/flutter#189069) 2026-07-07 [email protected] fix android semantics integration test hangs due to postframe callback (flutter/flutter#189043) 2026-07-07 [email protected] Bump goldctl (flutter/flutter#189030) 2026-07-07 [email protected] Roll Skia from 71db7c06c5fe to 80ae1deed9ed (2 revisions) (flutter/flutter#189060) 2026-07-07 [email protected] Collect analytics on AI agent usage (flutter/flutter#187630) 2026-07-07 [email protected] Roll Skia from 125a76cc4cf3 to 71db7c06c5fe (4 revisions) (flutter/flutter#189054) 2026-07-07 [email protected] Roll Dart SDK from 70577d6f2bba to c648e3429d76 (1 revision) (flutter/flutter#189052) 2026-07-07 [email protected] Fix RenderSliverPadding setter assertion (flutter/flutter#187353) 2026-07-07 [email protected] Roll Skia from 2dde156aec3e to 125a76cc4cf3 (3 revisions) (flutter/flutter#189037) 2026-07-07 [email protected] Explain asynchronous causes in the setState() called after dispose() error (flutter/flutter#187294) 2026-07-07 [email protected] Roll Skia from 7dccd1e79a5b to 2dde156aec3e (2 revisions) (flutter/flutter#189035) 2026-07-07 [email protected] Add `STRING_CATALOG_GENERATE_SYMBOLS = YES;` (flutter/flutter#188163) 2026-07-07 [email protected] Print warnings on Intel Macs / targeting Intel Macs (flutter/flutter#188835) 2026-07-07 [email protected] Roll Dart SDK from 4c03f64b19f6 to 70577d6f2bba (1 revision) (flutter/flutter#189031) 2026-07-07 [email protected] Roll Fuchsia Linux SDK from n1Lm2Z4DZkfC3bwj5... to 7RjQJBW3m-3Jl-7jr... (flutter/flutter#189032) 2026-07-06 [email protected] Recommend `OverlayPortal.overlayChildLayoutBuilder` over Target-Follower (flutter/flutter#188894) 2026-07-06 [email protected] Sync CHANGELOG.md from stable (flutter/flutter#189025) 2026-07-06 [email protected] Rename preferredSize to size and preferredConstraints to constraints in the windowing API (flutter/flutter#189017) 2026-07-06 [email protected] Skip locked issues in no-response check (flutter/flutter#188950) 2026-07-06 [email protected] Fix potential race condtion in android_semantics_integration_test (flutter/flutter#188830) 2026-07-06 [email protected] ci: udpate wait-for-engine-build composite action to cocoon (flutter/flutter#189020) 2026-07-06 [email protected] Roll Skia from 2b55eed5500d to 7dccd1e79a5b (3 revisions) (flutter/flutter#189021) 2026-07-06 [email protected] [AGP 9] Update Flutter Template Versions (flutter/flutter#188762) 2026-07-06 [email protected] fix(engine/windows): keep tooltip position rect alive - fix use after free (flutter/flutter#188476) 2026-07-06 [email protected] [Tool] Fix null check operator crash in currentPackageConfig (flutter/flutter#188454) 2026-07-06 [email protected] [Tool] Gracefully handle WDAC/AppLocker blocks for impellerc (flutter/flutter#188452) 2026-07-06 [email protected] [flutter_tools] Throw DaemonException if app fails to start early (flutter/flutter#188921) 2026-07-06 [email protected] Roll Dart SDK from ce7a2567eb59 to 4c03f64b19f6 (2 revisions) (flutter/flutter#189015) 2026-07-06 [email protected] [flutter_tools, engine] Add --disable-service-origin-check option to disable VM service origin checks (flutter/flutter#188745) 2026-07-06 [email protected] [flutter_tools] Fix test flakiness in widget_preview_detection_test.dart (flutter/flutter#188922) 2026-07-06 [email protected] Roll pub packages (flutter/flutter#189009) 2026-07-06 [email protected] Roll Skia from c0e2b9667d91 to 2b55eed5500d (1 revision) (flutter/flutter#189006) 2026-07-06 [email protected] Roll Packages from 2fbe873 to fc00ceb (1 revision) (flutter/flutter#189007) 2026-07-06 [email protected] Roll Skia from b68567542f81 to c0e2b9667d91 (1 revision) (flutter/flutter#189004) 2026-07-06 [email protected] Fixing multiline GetBoxesForRange (flutter/flutter#188803) 2026-07-06 [email protected] Roll Skia from e15ea7a4b927 to b68567542f81 (4 revisions) (flutter/flutter#189000) 2026-07-06 [email protected] Roll Skia from 79806692425f to e15ea7a4b927 (2 revisions) (flutter/flutter#188992) 2026-07-06 [email protected] Roll Skia from 2826ae6dc649 to 79806692425f (1 revision) (flutter/flutter#188991) 2026-07-06 [email protected] Roll Skia from 7f99eee20fd6 to 2826ae6dc649 (1 revision) (flutter/flutter#188990) 2026-07-06 [email protected] Add debugPaintFocusBoxes (flutter/flutter#188288) 2026-07-05 [email protected] Roll Fuchsia Linux SDK from bkK6BLiZDRnE7AQQj... to n1Lm2Z4DZkfC3bwj5... (flutter/flutter#188989) 2026-07-05 [email protected] Roll Skia from 75a4bf6706bd to 7f99eee20fd6 (2 revisions) (flutter/flutter#188988) ...
kalyujniy
pushed a commit
to brickit-app/camera
that referenced
this pull request
Jul 8, 2026
…lutter#12137) Manual roll Flutter from 6995038d96ef to 91939cc4db78 (48 revisions) Manual roll requested by [email protected] flutter/flutter@6995038...91939cc 2026-07-07 [email protected] Roll Skia from 80ae1deed9ed to 075fbe4778d9 (6 revisions) (flutter/flutter#189067) 2026-07-07 [email protected] Bump customer testing version for new registrants (flutter/flutter#189070) 2026-07-07 [email protected] Roll Packages from fc00ceb to 92525f5 (2 revisions) (flutter/flutter#189069) 2026-07-07 [email protected] fix android semantics integration test hangs due to postframe callback (flutter/flutter#189043) 2026-07-07 [email protected] Bump goldctl (flutter/flutter#189030) 2026-07-07 [email protected] Roll Skia from 71db7c06c5fe to 80ae1deed9ed (2 revisions) (flutter/flutter#189060) 2026-07-07 [email protected] Collect analytics on AI agent usage (flutter/flutter#187630) 2026-07-07 [email protected] Roll Skia from 125a76cc4cf3 to 71db7c06c5fe (4 revisions) (flutter/flutter#189054) 2026-07-07 [email protected] Roll Dart SDK from 70577d6f2bba to c648e3429d76 (1 revision) (flutter/flutter#189052) 2026-07-07 [email protected] Fix RenderSliverPadding setter assertion (flutter/flutter#187353) 2026-07-07 [email protected] Roll Skia from 2dde156aec3e to 125a76cc4cf3 (3 revisions) (flutter/flutter#189037) 2026-07-07 [email protected] Explain asynchronous causes in the setState() called after dispose() error (flutter/flutter#187294) 2026-07-07 [email protected] Roll Skia from 7dccd1e79a5b to 2dde156aec3e (2 revisions) (flutter/flutter#189035) 2026-07-07 [email protected] Add `STRING_CATALOG_GENERATE_SYMBOLS = YES;` (flutter/flutter#188163) 2026-07-07 [email protected] Print warnings on Intel Macs / targeting Intel Macs (flutter/flutter#188835) 2026-07-07 [email protected] Roll Dart SDK from 4c03f64b19f6 to 70577d6f2bba (1 revision) (flutter/flutter#189031) 2026-07-07 [email protected] Roll Fuchsia Linux SDK from n1Lm2Z4DZkfC3bwj5... to 7RjQJBW3m-3Jl-7jr... (flutter/flutter#189032) 2026-07-06 [email protected] Recommend `OverlayPortal.overlayChildLayoutBuilder` over Target-Follower (flutter/flutter#188894) 2026-07-06 [email protected] Sync CHANGELOG.md from stable (flutter/flutter#189025) 2026-07-06 [email protected] Rename preferredSize to size and preferredConstraints to constraints in the windowing API (flutter/flutter#189017) 2026-07-06 [email protected] Skip locked issues in no-response check (flutter/flutter#188950) 2026-07-06 [email protected] Fix potential race condtion in android_semantics_integration_test (flutter/flutter#188830) 2026-07-06 [email protected] ci: udpate wait-for-engine-build composite action to cocoon (flutter/flutter#189020) 2026-07-06 [email protected] Roll Skia from 2b55eed5500d to 7dccd1e79a5b (3 revisions) (flutter/flutter#189021) 2026-07-06 [email protected] [AGP 9] Update Flutter Template Versions (flutter/flutter#188762) 2026-07-06 [email protected] fix(engine/windows): keep tooltip position rect alive - fix use after free (flutter/flutter#188476) 2026-07-06 [email protected] [Tool] Fix null check operator crash in currentPackageConfig (flutter/flutter#188454) 2026-07-06 [email protected] [Tool] Gracefully handle WDAC/AppLocker blocks for impellerc (flutter/flutter#188452) 2026-07-06 [email protected] [flutter_tools] Throw DaemonException if app fails to start early (flutter/flutter#188921) 2026-07-06 [email protected] Roll Dart SDK from ce7a2567eb59 to 4c03f64b19f6 (2 revisions) (flutter/flutter#189015) 2026-07-06 [email protected] [flutter_tools, engine] Add --disable-service-origin-check option to disable VM service origin checks (flutter/flutter#188745) 2026-07-06 [email protected] [flutter_tools] Fix test flakiness in widget_preview_detection_test.dart (flutter/flutter#188922) 2026-07-06 [email protected] Roll pub packages (flutter/flutter#189009) 2026-07-06 [email protected] Roll Skia from c0e2b9667d91 to 2b55eed5500d (1 revision) (flutter/flutter#189006) 2026-07-06 [email protected] Roll Packages from 2fbe873 to fc00ceb (1 revision) (flutter/flutter#189007) 2026-07-06 [email protected] Roll Skia from b68567542f81 to c0e2b9667d91 (1 revision) (flutter/flutter#189004) 2026-07-06 [email protected] Fixing multiline GetBoxesForRange (flutter/flutter#188803) 2026-07-06 [email protected] Roll Skia from e15ea7a4b927 to b68567542f81 (4 revisions) (flutter/flutter#189000) 2026-07-06 [email protected] Roll Skia from 79806692425f to e15ea7a4b927 (2 revisions) (flutter/flutter#188992) 2026-07-06 [email protected] Roll Skia from 2826ae6dc649 to 79806692425f (1 revision) (flutter/flutter#188991) 2026-07-06 [email protected] Roll Skia from 7f99eee20fd6 to 2826ae6dc649 (1 revision) (flutter/flutter#188990) 2026-07-06 [email protected] Add debugPaintFocusBoxes (flutter/flutter#188288) 2026-07-05 [email protected] Roll Fuchsia Linux SDK from bkK6BLiZDRnE7AQQj... to n1Lm2Z4DZkfC3bwj5... (flutter/flutter#188989) 2026-07-05 [email protected] Roll Skia from 75a4bf6706bd to 7f99eee20fd6 (2 revisions) (flutter/flutter#188988) ...
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
The Flutter tool crashes with a
Null check operator used on a null valuein sandboxed or package-managed environments (like NixOS or stand-alone AOT runs) where the isolate does not provide package resolution metadata.This change implements:
Removing the strict null assertion (
!) onIsolate.packageConfigSync.Adding a robust fallback: if null, it attempts to resolve
.dart_tool/package_config.jsonrelative to the current working directory and then the executing script.If all fail, it throws a clean
ToolExitprompting the user to runflutter pub getinstead of a raw runtime crash.Fixes #188449