git cvsimport fails

Hi

I'm trying to import from a CVS repository and get this error message at
the end:

|Commit ID 076fd7d71925bb551320aa20aa8eec68bf218f45
|DONE.
|fatal: Needed a single revision
|Can merge only exactly one commit into empty head
|Could not merge origin into the current branch.

Is my git repo broken, is the CVS repo broken, is it just a shortcoming
of cvsimport? Any idea whether it is fixable?

Thomas