httprepository' object has no attribute 'branchtags'

[vra5107]

Traceback (most recent call last):
File "/home/venkat/fast-export/hg-fast-export.py", line 384, in
options.statusfile,authors=a,sob=options.sob,force=options.force))
File "/home/venkat/fast-export/hg-fast-export.py", line 297, in hg2git
if not verify_heads(ui,repo,heads_cache,force):
File "/home/venkat/fast-export/hg-fast-export.py", line 261, in verify_heads
branches=repo.branchtags()
AttributeError: 'httprepository' object has no attribute 'branchtags'