Horizin Create Project Error

Error Log

[Wed Jan 23 15:11:29 2013] [error] Request returned failure status.
[Wed Jan 23 15:11:29 2013] [error] None
[Wed Jan 23 15:11:29 2013] [error] \x1b[31;1mRecoverable error: An unexpected error prevented the server from fulfilling your request. 'NoneType' object has no attribute 'get' (HTTP 500)\x1b[0m
[Wed Jan 23 15:11:29 2013] [error] Traceback (most recent call last):
[Wed Jan 23 15:11:29 2013] [error]   File "/usr/lib/python2.7/dist-packages/horizon/dashboards/syspanel/projects/workflows.py", line 221, in handle
[Wed Jan 23 15:11:29 2013] [error]     role_id=role.id)
[Wed Jan 23 15:11:29 2013] [error]   File "/usr/lib/python2.7/dist-packages/horizon/api/keystone.py", line 229, in add_tenant_user_role
[Wed Jan 23 15:11:29 2013] [error]     tenant_id)
[Wed Jan 23 15:11:29 2013] [error]   File "/usr/lib/python2.7/dist-packages/keystoneclient/v2_0/roles.py", line 75, in add_user_role
[Wed Jan 23 15:11:29 2013] [error]     return self._update(route % params, None, "role")
[Wed Jan 23 15:11:29 2013] [error]   File "/usr/lib/python2.7/dist-packages/keystoneclient/base.py", line 94, in _update
[Wed Jan 23 15:11:29 2013] [error]     resp, body = methods[method](url, body=body)
[Wed Jan 23 15:11:29 2013] [error]   File "/usr/lib/python2.7/dist-packages/keystoneclient/client.py", line 183, in put
[Wed Jan 23 15:11:29 2013] [error]     return self._cs_request(url, 'PUT', **kwargs)
[Wed Jan 23 15:11:29 2013] [error]   File "/usr/lib/python2.7/dist-packages/keystoneclient/client.py", line 161, in _cs_request
[Wed Jan 23 15:11:29 2013] [error]     **kwargs)
[Wed Jan 23 15:11:29 2013] [error]   File "/usr/lib/python2.7/dist-packages/keystoneclient/client.py", line 141, in request
[Wed Jan 23 15:11:29 2013] [error]     raise exceptions.from_response(resp, body)
[Wed Jan 23 15:11:29 2013] [error] ClientException: An unexpected error prevented the server from fulfilling your request. 'NoneType' object has no attribute 'get' (HTTP 500)


Access Log

10.0.0.53 - - [23/Jan/2013:15:11:14 +0000] "POST /horizon/syspanel/projects/ HTTP/1.1" 302 507 "http://10.0.0.53/horizon/syspanel/projects/" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"
10.0.0.53 - - [23/Jan/2013:15:11:14 +0000] "GET /horizon/syspanel/projects/ HTTP/1.1" 200 3239 "http://10.0.0.53/horizon/syspanel/projects/" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"
10.0.0.53 - - [23/Jan/2013:15:11:14 +0000] "GET /horizon/i18n/js/horizon/ HTTP/1.1" 200 2424 "http://10.0.0.53/horizon/syspanel/projects/" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"
10.0.0.53 - - [23/Jan/2013:15:11:14 +0000] "GET /static/dashboard/fonts/Anivers_Regular-webfont.woff?2c3db88030ec HTTP/1.1" 304 189 "http://10.0.0.53/static/dashboard/css/9feb0b911869.css" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"
10.0.0.53 - - [23/Jan/2013:15:11:20 +0000] "GET /horizon/syspanel/projects/create HTTP/1.1" 200 2242 "http://10.0.0.53/horizon/syspanel/projects/" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"
10.0.0.53 - - [23/Jan/2013:15:11:28 +0000] "POST /horizon/syspanel/projects/create HTTP/1.1" 200 565 "http://10.0.0.53/horizon/syspanel/projects/" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"
10.0.0.53 - - [23/Jan/2013:15:11:29 +0000] "GET /horizon/syspanel/projects/ HTTP/1.1" 200 3396 "http://10.0.0.53/horizon/syspanel/projects/" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"
10.0.0.53 - - [23/Jan/2013:15:11:29 +0000] "GET /horizon/i18n/js/horizon/ HTTP/1.1" 200 2424 "http://10.0.0.53/horizon/syspanel/projects/" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"
10.0.0.53 - - [23/Jan/2013:15:11:29 +0000] "GET /static/dashboard/fonts/Anivers_Regular-webfont.woff?2c3db88030ec HTTP/1.1" 304 189 "http://10.0.0.53/static/dashboard/css/9feb0b911869.css" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0"