立ち往生しています... git stash を実行すると、次のようになります。
Fatal: Unable to create /index.lock: File exists. If no other git process is currently running, this probably means a git process crashed in this repository earlier. Make sure no other git process is running and remove the file manually to continue.
index.lock を手動で削除すると、次のようになります。
Rename from .git/index.lock to .git/index failed. Should I try again? (y/n)
git チェックアウト マスター:
Rename from .git/index.lock to .git/index failed. Should I try again? (y/n)
GitHub 経由で git commit:
Unable to create a new commit
私に何ができる?