Traceback (most recent call last):
  File "elisa.py", line 11, in <module>
    application.main(sys.argv)
  File "/home/phil/devel/elisa/branches/rewrite-1/elisa/core/application.py", line 420, in main
    app.stop()
  File "/home/phil/devel/elisa/branches/rewrite-1/elisa/core/application.py", line 371, in stop
    stopped(True)
  File "/home/phil/devel/elisa/branches/rewrite-1/elisa/core/application.py", line 342, in stopped
    self.coherence.shutdown()
  File "/home/phil/devel/coherence/coherence/base.py", line 252, in shutdown
    self.ssdp_server.shutdown()
  File "/home/phil/devel/coherence/coherence/upnp/core/ssdp.py", line 56, in shutdown
    self.doByebye(st)
  File "/home/phil/devel/coherence/coherence/upnp/core/ssdp.py", line 215, in doByebye
    self.transport.write('\r\n'.join(resp), (SSDP_ADDR, SSDP_PORT))
AttributeError: 'NoneType' object has no attribute 'write'