I have setup a three node grizzly with two networks and OVS plugin

Controller node, Network Node and Compute node. All the services are running fine and nova-manage service list from controller and compute node shows the smilies. The problem is with Horizon dashboard.

I have followed this guide with 2 network. I did COMPRESS_OFFLINE = False in /etc/openstack-dashboard/local_settings.py and restarted apache2 and memcached.

I get internal server error once I login to dashboard with my public IP ie 10.1.62.1/horizon.

If i call just 10.1.62.1 in browser OR w3m , i get the default webpage of apache in Ubuntu. The error log in apache shows the following:

[Tue Apr 23 12:59:02 2013] [error] [client 10.1.62.1]     for kind, value, basename, elem in self.split_contents(), referer: http://10.1.62.1/horizon
[Tue Apr 23 12:59:02 2013] [error] [client 10.1.62.1]   File "/usr/lib/python2.7/dist-packages/compressor/js.py", line 18, in split_contents, referer: http://10.1.62.1/horizon
[Tue Apr 23 12:59:02 2013] [error] [client 10.1.62.1]     basename = self.get_basename(attribs['src']), referer: http://10.1.62.1/horizon
[Tue Apr 23 12:59:02 2013] [error] [client 10.1.62.1]   File "/usr/lib/python2.7/dist-packages/compressor/base.py", line 73, in get_basename, referer: http://10.1.62.1/horizon
[Tue Apr 23 12:59:02 2013] [error] [client 10.1.62.1]     "compressed" % (url, base_url)), referer: http://10.1.62.1/horizon
[Tue Apr 23 12:59:02 2013] [error] [client 10.1.62.1] UncompressableFileError: 'horizon/js/horizon.js' isn't accessible via COMPRESS_URL ('/static/') and can't be compressed, referer: http://10.1.62.1/horizon

Where should I look to solve the UncompressableFileError?