can't import timezone
I have a very weird problem of import timezone issue after successfully installation with devstack. When you open the login page, you will see "Internal Server Error -500" and error logs captured below. I verified the related module of pytz has been already installed. But don't know why this happens. I have this problems in two machines which are ubuntu 11.10. I didn't see the problem in ubuntu12.04. Curiously!
=========================horizon log================================ [Thu Nov 22 11:17:03 2012] [error] Warning: Could not import Horizon dependencies. This is normal during installation. [Thu Nov 22 11:17:03 2012] [error] [client 9.187.160.169] mod_wsgi (pid=3801): Exception occurred processing WSGI script '/opt/stack/horizon/openstack_dashboard/wsgi/django.wsgi'. [Thu Nov 22 11:17:03 2012] [error] [client 9.187.160.169] Traceback (most recent call last): [Thu Nov 22 11:17:03 2012] [error] [client 9.187.160.169] File "/usr/lib/pymodules/python2.7/django/core/handlers/wsgi.py", line 250, in __call__ [Thu Nov 22 11:17:03 2012] [error] [client 9.187.160.169] self.load_middleware() [Thu Nov 22 11:17:03 2012] [error] [client 9.187.160.169] File "/usr/lib/pymodules/python2.7/django/core/handlers/base.py", line 47, in load_middleware [Thu Nov 22 11:17:03 2012] [error] [client 9.187.160.169] raise exceptions.ImproperlyConfigured('Error importing middleware %s: "%s"' % (mw_module, e)) [Thu Nov 22 11:17:03 2012] [error] [client 9.187.160.169] ImproperlyConfigured: Error importing middleware horizon.middleware: "cannot import name timezone" [Thu Nov 22 03:17:03 2012] [error] [client 9.187.160.169] mod_wsgi (pid=3800): Exception occurred processing WSGI script '/opt/stack/horizon/openstack_dashboard/wsgi/django.wsgi'. [Thu Nov 22 03:17:03 2012] [error] [client 9.187.160.169] Traceback (most recent call last): [Thu Nov 22 03:17:03 2012] [error] [client 9.187.160.169] File "/usr/lib/pymodules/python2.7/django/core/handlers/wsgi.py", line 250, in __call__ [Thu Nov 22 03:17:03 2012] [error] [client 9.187.160.169] self.load_middleware() [Thu Nov 22 03:17:03 2012] [error] [client 9.187.160.169] File "/usr/lib/pymodules/python2.7/django/core/handlers/base.py", line 47, in load_middleware [Thu Nov 22 03:17:03 2012] [error] [client 9.187.160.169] raise exceptions.ImproperlyConfigured('Error importing middleware %s: "%s"' % (mw_module, e))