version control - Git to Mercurial conversion fails because of bad file -

version control - Git to Mercurial conversion fails because of bad file -

i'm trying convert git repository mercurial. partway through fails next error:

$ hg convert --datesort git-repo hg-repo initializing destination hg-repo repository scanning source... sorting... converting... 77 commit 76 other commit fatal: git cat-file 1bd9dc57043a032dc05dbd8eabff457e560cd70a: bad file transaction abort! rollback completed abort: cannot read 'blob' object @ 1bd9dc57043a032dc05dbd8eabff457e560cd70a

running git fsck within git repo not reveal errors.

how can figure out problem is, , how can prepare it?

git version-control mercurial blob git-fsck