I’ll introduce how to fix the Git error error: cannot lock ref ‘refs/remotes/origin/xxx’: ‘refs/remotes/origin/xxx/yyy’ exists;.

error: cannot lock ref 'refs/remotes/origin/xxx': 'refs/remotes/origin/xxx/yyy' exists;

$ git fetch
error: cannot lock ref 'refs/remotes/origin/fix-test': 'refs/remotes/origin/fix-test/hoge' exists; cannot create 'refs/remotes/origin/fix-test'
 ! [new branch]      fix-test/hoge -> origin/fix-test/hoge  (unable to update local ref)
error: some local refs could not be updated; try running
 'git remote prune origin' to remove any old, conflicting branches

Solution: git remote prune origin

git remote prune origin

That’s all from the Gemba.

Reference Information

• ややこしいブランチ名をつけたらfetchできなくなった件 - helen's blog