Comment 3 for bug 105000

I hit something similar with "bzr viz" though the dbus error message is slightly different. I'm guessing the fix for this bug will probably fix my error as well so I've not opened a new report. Removing bzr-avahi and bzr-dbus allows "bzr viz" to function properly. Error output below.

mort@pickle:~/work/EMC-SMF/devel/obiee-access$ bzr viz
bzr: ERROR: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 0

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 893, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 839, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 539, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/gtk/__init__.py", line 288, in run
    pp = start_viz_window(br, revids, limit)
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/gtk/__init__.py", line 256, in start_viz_window
    from bzrlib.plugins.gtk.viz import BranchWindow
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/gtk/viz/__init__.py", line 14, in <module>
    from branchwin import BranchWindow
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/gtk/viz/branchwin.py", line 18, in <module>
    from bzrlib.plugins.gtk.tags import AddTagDialog
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/gtk/tags.py", line 27, in <module>
    from bzrlib.plugins.gtk.revisionview import RevisionView
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/gtk/revisionview.py", line 32, in <module>
    from bzrlib.plugins.gtk import seahorse
  File "/usr/lib/python2.5/site-packages/bzrlib/plugins/gtk/seahorse.py", line 33, in <module>
    crypto = dbus.Interface(bus.get_object(BUS_NAME, CRYPTO_PATH),
  File "/var/lib/python-support/python2.5/dbus/bus.py", line 244, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/var/lib/python-support/python2.5/dbus/proxies.py", line 241, in __init__
    self._named_service = conn.activate_name_owner(bus_name)
  File "/var/lib/python-support/python2.5/dbus/bus.py", line 183, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/var/lib/python-support/python2.5/dbus/bus.py", line 281, in start_service_by_name
    'su', (bus_name, flags)))
  File "/var/lib/python-support/python2.5/dbus/connection.py", line 622, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 0

bzr 1.11 on python 2.5.4 (linux2)
arguments: ['/usr/bin/bzr', 'viz']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'de_DE.UTF-8'
plugins:
  avahi /usr/lib/python2.5/site-packages/bzrlib/plugins/avahi [0.3dev]
  bzrtools /usr/lib/python2.5/site-packages/bzrlib/plugins/bzrtools [1.11]
  dbus /usr/lib/python2.5/site-packages/bzrlib/plugins/dbus [unknown]
  gtk /usr/lib/python2.5/site-packages/bzrlib/plugins/gtk [0.95.0.final.1]
  launchpad /usr/lib/python2.5/site-packages/bzrlib/plugins/launchpad [unknown]
  netrc_credential_store /usr/lib/python2.5/site-packages/bzrlib/plugins/netrc_credential_store [unknown]
  pqm /usr/lib/python2.5/site-packages/bzrlib/plugins/pqm [1.3]
  rebase /usr/lib/python2.5/site-packages/bzrlib/plugins/rebase [0.4.2]
  search /usr/lib/python2.5/site-packages/bzrlib/plugins/search [1.7dev]
  stats /usr/lib/python2.5/site-packages/bzrlib/plugins/stats [unknown]
  svn /usr/lib/python2.5/site-packages/bzrlib/plugins/svn [0.5]
*** Bazaar has encountered an internal error.
    Please report a bug at https://bugs.launchpad.net/bzr/+filebug
    including this traceback, and a description of what you
    were doing when the error occurred.