Open Stack

Hi,

Perhaps this is my fault but this morning I wanted to start devstack 
(master) with q-trunk enabled, and got this error:
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]:   File 
"/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 65, in _launch
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: raise e
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ImportError: 
Class not found.
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: CRITICAL 
neutron [-] Unhandled error: ImportError: Class not found.
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR neutron 
Traceback (most recent call last):
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File "/usr/local/bin/neutron-openvswitch-agent", line 10, in 
<module>
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     sys.exit(main())
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File 
"/opt/stack/neutron/neutron/cmd/eventlet/plugins/ovs_neutron_agent.py", 
line 20, in main
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     agent_main.main()
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File 
"/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/main.py", 
line 49, in main
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     mod.main()
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File 
"/opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/main.py", 
line 35, in main
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     'neutron.plugins.ml2.drivers.openvswitch.agent.'
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File 
"/usr/local/lib/python2.7/dist-packages/ryu/base/app_manager.py", line 
375, in run_apps
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     hub.joinall(services)
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", 
line 103, in joinall
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     t.wait()
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File 
"/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", line 
175, in wait
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     return self._exit_event.wait()
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File 
"/usr/local/lib/python2.7/dist-packages/eventlet/event.py", line 125, in 
wait
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     current.throw(*self._exc)
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File 
"/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", line 
214, in main
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     result = function(*args, **kwargs)
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", 
line 65, in _launch
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR 
neutron     raise e
Oct 30 08:59:22 horizon neutron-openvswitch-agent[24556]: ERROR neutron 
ImportError: Class not found.

I started successfully with the noop firewall driver after the problem.
I run devstack with *PIP_UPGRADE=True* & *RECLONE=yes*.

Could you help me if this is some misconfiguration from my side, or 
perhaps some requirements issue?

Regards
Lajos

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