[Tip] Alt + Enter 안드로이드 스튜디오에서 동작하지 않을때

Alt+Enter stopped working for Dart files in IntelliJ

: Go to File > Settings > Editor > Intentions and Confirm the Dart Analysis Server.
For Mac OS:
Go to Android Studio -> Preferences -> Editor -> Intentions -> Quick assists powered by the Dart Analysis Server (Mark it) -> Apply.

flutter pub upgrade --major-versions
패키지 전부 업그레이드 하고싶을때 명령어