I've deleted .git folder, how to initialize it again and commit
已回答
It says no files to commit, and invalid VCS mapping
Tried Create Git Repository and still can't push, says "select files", where and how and why select what, it should push entire repo with initial commit.
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See https://www.jetbrains.com/help/idea/set-up-a-git-repository.html#put-existing-project-under-Git.