1. flutter upgrade시에 에러 > flutter upgrade Your flutter checkout has local changes that would be erased by upgrading. If you want to keep these changes, it is recommended that you stash them via "git stash" or else commit the changes to a local branch. If it is okay to remove local changes, then re-run this command with "--force". 작업하다보면 flutter 소스를 debug를 하게 되는데 이걸 수정하거나 건드려서 문제가 생기는 것입니다. 2. 해결..