Open Stack

I posted this on ask.openstack.org but didn't receive any responses so
trying here.

I am on CentOS 6.4 and trying to setup Neutron. Unfortunately I'm
getting a crash when starting on this server. The snipped server.log
file is...

2013-11-25 23:41:16.756 8105 INFO neutron.common.config [-] Logging
enabled!
2013-11-25 23:41:16.757 8105 ERROR neutron.common.legacy [-] Skipping
unknown group key: firewall_driver
2013-11-25 23:41:16.762 8105 INFO neutron.common.config [-] Config paste
file: /etc/neutron/api-paste.ini
2013-11-25 23:41:16.822 8105 INFO neutron.manager [-] Loading Plugin:
neutron.plugins.openvswitch.ovs_neutron_plugin.OVSNeutronPluginV2
2013-11-25 23:41:16.974 8105 INFO
neutron.plugins.openvswitch.ovs_neutron_plugin [-] Network VLAN ranges:
{}
2013-11-25 23:41:17.009 8105 INFO
neutron.plugins.openvswitch.ovs_neutron_plugin [-] Tunnel ID ranges:
[(1, 1000)]
2013-11-25 23:41:17.093 8105 ERROR neutron.service [-] In serve_wsgi()
2013-11-25 23:41:17.093 8105 TRACE neutron.service Traceback (most
recent call last):
2013-11-25 23:41:17.093 8105 TRACE neutron.service   File
"/usr/lib/python2.6/site-packages/neutron/service.py", line 96, in
serve_wsgi
2013-11-25 23:41:17.093 8105 TRACE neutron.service     service.start()
2013-11-25 23:41:17.093 8105 TRACE neutron.service   File
"/usr/lib/python2.6/site-packages/neutron/service.py", line 65, in start
2013-11-25 23:41:17.093 8105 TRACE neutron.service     self.wsgi_app =
_run_wsgi(self.app_name)
2013-11-25 23:41:17.093 8105 TRACE neutron.service   File
"/usr/lib/python2.6/site-packages/neutron/service.py", line 109, in
_run_wsgi
2013-11-25 23:41:17.093 8105 TRACE neutron.service     app =
config.load_paste_app(app_name)
2013-11-25 23:41:17.093 8105 TRACE neutron.service   File
"/usr/lib/python2.6/site-packages/neutron/common/config.py", line 144,
in load_paste_app
2013-11-25 23:41:17.093 8105 TRACE neutron.service     app =
deploy.loadapp("config:%s" % config_path, name=app_name)
2013-11-25 23:41:17.093 8105 TRACE neutron.service   File
"/usr/lib/python2.6/site-packages/PasteDeploy-1.5.0-py2.6.egg/paste/deploy/loadwsgi.py",
line 247, in load
app
<snip>
2013-11-25 23:41:17.098 8105 TRACE neutron   File
"/usr/lib/python2.6/site-packages/oslo/config/cfg.py", line 1583, in
__inner
2013-11-25 23:41:17.098 8105 TRACE neutron     result = f(self, *args,
**kwargs)
2013-11-25 23:41:17.098 8105 TRACE neutron   File
"/usr/lib/python2.6/site-packages/oslo/config/cfg.py", line 1743, in
register_cli_opts
2013-11-25 23:41:17.098 8105 TRACE neutron    
self.register_cli_opt(opt, group, clear_cache=False)
2013-11-25 23:41:17.098 8105 TRACE neutron   File
"/usr/lib/python2.6/site-packages/oslo/config/cfg.py", line 1587, in
__inner
2013-11-25 23:41:17.098 8105 TRACE neutron     return f(self, *args,
**kwargs)
2013-11-25 23:41:17.098 8105 TRACE neutron   File
"/usr/lib/python2.6/site-packages/oslo/config/cfg.py", line 1735, in
register_cli_opt
2013-11-25 23:41:17.098 8105 TRACE neutron     raise
ArgsAlreadyParsedError("cannot register CLI option")
2013-11-25 23:41:17.098 8105 TRACE neutron ArgsAlreadyParsedError:
arguments already parsed: cannot register CLI option
2013-11-25 23:41:17.098 8105 TRACE neutron

What appears to be wrong?