[SOLVED] warning: refname 'HEAD' is ambiguous

I've been generating a few git repositories from CVS repositories using the crap tool (it's not crap!...)

Unfortunately, with one of them, and after the export, I keep getting complaints about HEAD being an ambiguous reference. I've read:

but unlike in that case - I don't have a branch named HEAD. So, what's the cause of this ambiguity?

If it's not a branch, it could be a tag. Check this with:

git --no-pager tag -l HEAD

if it produces an output line with HEAD on it, then - that's your problem. Now, you can either:

Rename the tag (difficult - since the instructions in here won't work due to the ambiguity), or
Delete the tag, like so:
```
git tag -d HEAD
```
(See also this question on deleting tags.)

warning: refname 'HEAD' is ambiguous - but no HEAD branch