error

[root]

bzr: ERROR: exceptions.AttributeError: 'module' object has no attribute 'SmartSSHTransport'

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 611, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 573, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 282, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.4/site-packages/bzrlib/builtins.py", line 684, in run
    br_from = Branch.open(from_location)
  File "/usr/lib/python2.4/site-packages/bzrlib/branch.py", line 113, in open
    control = bzrdir.BzrDir.open(base, _unsupported)
  File "/usr/lib/python2.4/site-packages/bzrlib/bzrdir.py", line 474, in open
    t = get_transport(base)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/__init__.py", line 1017, in get_transport
    t, last_err = _try_transport_factories(base, factory_list)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/__init__.py", line 1033, in _try_transport_factories
    return factory(base), None
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/__init__.py", line 99, in _loader
    klass = getattr(mod, classname)
AttributeError: 'module' object has no attribute 'SmartSSHTransport'

bzr 0.11.0 on python 2.4.4.final.0 (linux2)
arguments: ['/usr/bin/bzr', 'branch', 'bzr+ssh://129.94.27.52']