Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/sugar3/activity/activity.py", line 1336, in close
    self._do_close(skip_save)
  File "/usr/lib/python2.7/dist-packages/sugar3/activity/activity.py", line 1310, in _do_close
    self._complete_close()
  File "/usr/lib/python2.7/dist-packages/sugar3/activity/activity.py", line 1297, in _complete_close
    dbus.service.Object.remove_from_connection(self._bus)
  File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 626, in remove_from_connection
    '(%r,%r)' % (self, connection, path))
LookupError: <sugar3.activity.activityservice.ActivityService at /org/laptop/Activity/b3cc68087275c92cfd3f958af2b0fa542cdf803c at 0x7f49b4663a10> is not exported at a location matching (None,None)