TypeError at /nova/instances_and_volumes/ object of type 'NoneType' has no len()

[Sean Dague]

Brand new OpenStack environment, no instances yet created. Navigate to /nova/instances_and_volumes/ and you get the following error:

Request Method: GET
Request URL: http://XXXXX/nova/instances_and_volumes/
Django Version: 1.4
Exception Type: TypeError
Exception Value:
object of type 'NoneType' has no len()
Exception Location: /opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/dashboards/nova/instances_and_volumes/views.py in get_volumes_data, line 77
Python Executable: /usr/bin/python
Python Version: 2.7.3
Python Path:
['/opt/stack/horizon/openstack_dashboard/wsgi/../..',
 '/opt/stack/python-keystoneclient',
 '/opt/stack/python-novaclient',
 '/opt/stack/python-openstackclient',
 '/usr/local/lib/python2.7/dist-packages/cliff-0.7-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/tablib-0.9.11-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/cmd2-0.6.4-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/pyparsing-1.5.6-py2.7.egg',
 '/opt/stack/keystone',
 '/usr/local/lib/python2.7/dist-packages/WebOb-1.0.8-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/pam-0.1.4-py2.7.egg',
 '/opt/stack/glance',
 '/usr/local/lib/python2.7/dist-packages/jsonschema-0.2-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/swift-1.4.8-py2.7.egg',
 '/usr/local/lib/python2.7/dist-packages/pysendfile-2.0.0-py2.7-linux-x86_64.egg',
 '/usr/local/lib/python2.7/dist-packages/boto-2.1.1-py2.7.egg',
 '/opt/stack/nova',
 '/opt/stack/horizon',
 '/opt/stack/python-glanceclient',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-linux2',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages/PIL',
 '/usr/lib/python2.7/dist-packages/gst-0.10',
 '/usr/lib/python2.7/dist-packages/gtk-2.0',
 '/usr/lib/pymodules/python2.7',
 '/usr/lib/python2.7/dist-packages/ubuntu-sso-client',
 '/opt/stack/horizon/openstack_dashboard']
Server time: Thu, 14 Jun 2012 13:37:28 -0400

[Gabriel Hurley (gabriel-hurley)]

This is the same issue as reported in bug #1012380, which was fixed late last week.