Traceback (most recent call last):
  File "/home/cjb/git/sugar-jhbuild/build/share/sugar/shell/view/frame/FriendsBox.py", line 116, in _active_activity_changed_cb
    self._set_activity_ps(ps)
  File "/home/cjb/git/sugar-jhbuild/build/share/sugar/shell/view/frame/FriendsBox.py", line 103, in _set_activity_ps
    for buddy in activity_ps.get_joined_buddies():
  File "/home/cjb/git/sugar-jhbuild/build/lib/python2.4/site-packages/sugar/presence/activity.py", line 136, in get_joined_buddies
    resp = self._activity.GetJoinedBuddies()
  File "/home/cjb/git/sugar-jhbuild/build/lib/python2.4/site-packages/dbus/proxies.py", line 134, in __call__
    args,
  File "/home/cjb/git/sugar-jhbuild/build/lib/python2.4/site-packages/dbus/connection.py", line 597, in call_blocking
    reply_message = self.send_message_with_reply_and_block(
DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name :1.3 was not provided by any .service files