Traceback (most recent call last):
  File "/usr/bin/gwibber", line 67, in <module>
    client.Client()
  File "/usr/lib/python2.6/dist-packages/gwibber/client.py", line 441, in __init__
    self.w = GwibberClient()
  File "/usr/lib/python2.6/dist-packages/gwibber/client.py", line 28, in __init__
    self.model = gwui.Model()
  File "/usr/lib/python2.6/dist-packages/gwibber/gwui.py", line 43, in __init__
    self.services = json.loads(self.daemon.GetServices())
  File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 68, in __call__
    return self._proxy_method(*args, **keywords)
  File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 140, in __call__
    **keywords)
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 620, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 0