Comment 0 for bug 522637

Hello all,
after updating my bzr version from 1.6 to 2.0.4 everytime when I do any bzr operation it says
Doing on-the-fly conversion from <RepositoryFormatKnitPack4> to (remote).
This may take some time. Upgrade the repositories to the same format for better performance.

so i change format to 2a and now i can no do any operation on my branch.

here is the trace back
PythonVersion: 2.5.2
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 842, in exception_to_return_code
     return the_callable(*args, **kwargs)
   File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 1037, in run_bzr
     ret = run(*run_argv)
   File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 654, in run_argv_aliases
     return self.run(**all_cmd_args)
   File "/usr/lib/python2.5/site-packages/bzrlib/builtins.py", line 1017, in run
     possible_transports=possible_transports, local=local)
   File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 192, in write_locked
     result = unbound(self, *args, **kwargs)
   File "/usr/lib/python2.5/site-packages/bzrlib/workingtree.py", line 1611, in pull
     local=local)
   File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 192, in write_locked
     result = unbound(self, *args, **kwargs)
   File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 948, in pull
     possible_transports=possible_transports, *args, **kwargs)
   File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 3187, in pull
     _override_hook_target=_override_hook_target)
   File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 3064, in pull
     overwrite=overwrite, graph=graph)
   File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 192, in write_locked
     result = unbound(self, *args, **kwargs)
   File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 896, in update_revisions
     overwrite, graph)
   File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 3007, in update_revisions
     self.target.fetch(self.source, stop_revision)
   File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 192, in write_locked
     result = unbound(self, *args, **kwargs)
   File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 579, in fetch
     pb=pb)
   File "/usr/lib/python2.5/site-packages/bzrlib/repository.py", line 1696, in fetch
     find_ghosts=find_ghosts, fetch_spec=fetch_spec)
   File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 192, in write_locked
     result = unbound(self, *args, **kwargs)
   File "/usr/lib/python2.5/site-packages/bzrlib/repository.py", line 3414, in fetch
     pb=pb, find_ghosts=find_ghosts)
   File "/usr/lib/python2.5/site-packages/bzrlib/fetch.py", line 81, in __init__
     self.__fetch()
   File "/usr/lib/python2.5/site-packages/bzrlib/fetch.py", line 107, in __fetch
     self._fetch_everything_for_search(search)
   File "/usr/lib/python2.5/site-packages/bzrlib/fetch.py", line 135, in _fetch_everything_for_search
     stream, from_format, [])
   File "/usr/lib/python2.5/site-packages/bzrlib/repository.py", line 4245, in insert_stream
     return self._locked_insert_stream(stream, src_format, is_resume)
   File "/usr/lib/python2.5/site-packages/bzrlib/repository.py", line 4341, in _locked_insert_stream
     hint = self.target_repo.commit_write_group()
   File "/usr/lib/python2.5/site-packages/bzrlib/repository.py", line 1555, in commit_write_group
     result = self._commit_write_group()
   File "/usr/lib/python2.5/site-packages/bzrlib/repofmt/pack_repo.py", line 2273, in _commit_write_group
     hint = self._pack_collection._commit_write_group()
   File "/usr/lib/python2.5/site-packages/bzrlib/repofmt/pack_repo.py", line 2105, in _commit_write_group
     "Cannot add revision(s) to repository: " + problems_summary)
 BzrCheckError: Internal check failed: Cannot add revision(s) to repository: missing referenced chk root keys: [('sha1:fd73461fbfd0267489266f319c50f23c794efcf3',)]

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