Solving the Flutter Command Stuck on "Waiting for another flutter command to release the startup lock" Issue

Simple summary is at the very bottom of this post (in English). 간단 요약을 글의 가장 밑에 뒀습니다. 발단 평소처럼 습관적으로 flutter clean과 flutter pub cache clean 명령어를 실행했는데, 이후부터 Waiting for another flutter command to release the startup lock라고 뜨며 Flutter 커맨드를 입력하면 IDE ...