先日間違えてgit submodule add してしまったのでコミットする前に全部削除して再度git submodule add しようとしたら A git directory for 'git-tools/git' is found locally with remote(s): origin https://github.com/git/git.git If you want to reuse this local git directory instead of cloning again from https://github.com/git/git.git use the '--force' option. If the local git directory is not the correct repo or you are unsure what this means c