Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/gwibber/microblog/dispatcher.py", line 877, in handle_notify_item
    util.notify(sender_name, notify_text, image, 2000)
  File "/usr/lib/pymodules/python2.7/gwibber/microblog/util/__init__.py", line 185, in notify
    return notification.show()
GError: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name :1.19 was not provided by any .service files