Traceback (most recent call last):
  File "/usr/share/gtg/GTG/plugins/hamster/hamster.py", line 268, in task_cb
    self.sendTask(task)
  File "/usr/share/gtg/GTG/plugins/hamster/hamster.py", line 109, in sendTask
    category, description)
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.Python.TypeError: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 707, in _message_cb
    retval = candidate_method(self, *args, **keywords)
TypeError: AddFact() takes at most 5 arguments (7 given)