Code completion does not behave correctly

Hi!

I have a problem with code completion with my project. It worked up until a certain point but then stopped working. I first noticed the issue some time during the holidays. I can’t pinpoint to a specific version of VSCode, Dart-Code or the Flutter SDK as I’ve tried several different version and combinations by downgrading.

TLTR; Dart-Code can analyze my code but fails to provide quick fixes.

What doesn’t work:

• Code completion with classes from within my project
• Quick Fixes (missing import statements, remove unused imports, surround with new widget, etc)

What works:

• Code completion of external packages from pub
• Code formatting
• Static analysis (using pedantic rules)
• Refactoring like renaming classes
• Classes are found without problem once I add the import statements manually

What I’ve tried (and didn’t fix the problem)

• Downgrading versions of VSCode, Dart-Code and Flutter SDK
• Deleting all generated files:

  rm -rf .dart_tool/ build/ .flutter-plugins .flutter-plugins-dependencies .packages
  

Strange occurrence: Deleting the files worked once and the next morning code completion the problem magically reappeared. Deleting doesn’t work anymore.

• Checkout a fresh copy of the repository on another PC and try again
• Remove pedantic code analyzer
• I’ve looked at https://github.com/Dart-Code/Dart-Code/issues/1846 and https://github.com/Dart-Code/Dart-Code/issues/1742. Both seem unrelated to me.
• Check out an older version of my code

The problem doesn’t appear when I create a new project using flutter create myproject. I’ve added the analyzer logs to this gist: https://gist.github.com/fusion44/87bf104afba4cf1edcecf80781a75522.

My repository: https://github.com/fusion44/sendmany

Any idea what might cause this? Thank you!

[DanTup]

Thanks! I was able to repro this from your video and code.

I traced the issue back to the analysis_options.yaml file in your lib folder. I believe what’s happening is the analysis server is finding that file in lib and then treating that folder as the project root - which means it doesn’t find the referenced packages. If you rename this file away and reload VS Code, the quick-fixes seem to appear.

As far as I can tell, the analysis_options.yaml file should be alongside the pubspec.yaml (see https://dart.dev/guides/language/analysis-options#the-analysis-options-file), though I do recall seeing discussion about it being nested. It’s slightly strange that if you manually add the import then things work - so it’s possible this is a bug - @bwilkerson might be able to confirm.

[DanTup]

@fusion44 based on Brian’s comment above, it sounds like this can be considered an analysis server bug, so it should be raised at https://github.com/dart-lang/sdk/issues. If the SDK is updated to handle this, it won’t require any changes in the VS Code extension.

Thanks!