How to handle git gc fatal: bad object refs/remotes/origin/HEAD error?

Question

I randomly hit this today while trying to run Git garbage collect:

$ git gc
fatal: bad object refs/remotes/origin/HEAD
error: failed to run repack
         


        

Answer 1

If you're using git worktrees, make sure you're doing a

git worktree prune

before running

git gc

I had a worktree get corrupted and this seemed to do the trick after removing the corrupted worktree. git prune by itself didn't seem to work.