AppLocalizations missing reference - Internationalization - Flutter

flutter_gen applocalizations missing reference in Visual Studio Code.

I already tried

• flutter upgrade
• flutter pub cache clean
• flutter clean / flutter pub get
• Dart: Restart Analysis Server (VS Code)
• Developer: Reload Window (VS Code)

My pubspec.yaml has

• generate: true
• flutter_localizations:sdk: flutter

Solution 1: Denis Ken

Solution:

• My machine was with 2 flutter sdk installed. I unnistalled one, and everything worked again.