2010-01-05 15:55:54 INFO    63 bytes transferred | 
2010-01-05 15:55:56 INFO    Generating pack... 0
2010-01-05 15:56:07 INFO    finding revisions to fetch:generating index 0/5379
2010-01-05 15:56:09 INFO    finding revisions to fetch 1
2010-01-05 15:57:09 INFO    
Traceback (most recent call last):
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/scripts/code-import-worker.py", line 63, in <module>
    script.main()
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/scripts/code-import-worker.py", line 58, in main
    import_worker.run()
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/lib/lp/codehosting/codeimport/worker.py", line 409, in run
    self._doImport()
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/lib/lp/codehosting/codeimport/worker.py", line 526, in _doImport
    bazaar_tree.branch.pull(foreign_branch, overwrite=True)
  File "<string>", line 4, in pull_write_locked
  File "/home/pqm/for_rollouts/production/eggs/bzr-2.1.0b3-py2.5-linux-x86_64.egg/bzrlib/branch.py", line 949, in pull
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/optionalbzrplugins/git/branch.py", line 416, in pull
    graph=graph)
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/optionalbzrplugins/git/branch.py", line 379, in update_revisions
    interrepo.fetch_objects(determine_wants, self.source.mapping)
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/optionalbzrplugins/git/fetch.py", line 493, in fetch_objects
    store, recorded_wants, pb)
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/optionalbzrplugins/git/fetch.py", line 363, in import_git_objects
    allow_submodules=getattr(repo._format, "supports_tree_reference", False))
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/optionalbzrplugins/git/fetch.py", line 255, in import_git_tree
    allow_submodules=allow_submodules)
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/optionalbzrplugins/git/fetch.py", line 255, in import_git_tree
    allow_submodules=allow_submodules)
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/optionalbzrplugins/git/fetch.py", line 255, in import_git_tree
    allow_submodules=allow_submodules)
  File "/srv/importd.launchpad.net/production/launchpad-rev-8806/optionalbzrplugins/git/fetch.py", line 261, in import_git_tree
    raise SubmodulesRequireSubtrees()
bzrlib.plugins.git.fetch.SubmodulesRequireSubtrees: The repository you are fetching from contains submodules. To continue, upgrade your Bazaar repository to a format that supports nested trees, such as 'development-subtree'.
Import failed:
Traceback (most recent call last):
Failure: twisted.internet.error.ProcessTerminated: A process has ended with a probable error condition: process ended with exit code 1.