[Flutter Error] Execution failed for task ':app:packageDebug'

에러

FAILURE: Build failed with an exception.
    * What went wrong:
    Execution failed for task ':app:packageDebug'.

디버깅 시 나타나는 에러

해결

터미널에 아래 명령어를 순서대로 입력

> flutter clean
> flutter pub get

https://stackoverflow.com/questions/61930007/how-to-solve-execution-failed-for-task-appcompileflutterbuilddebug