''module' object has no attribute 'quantum'' when trying to login to Dashboard

Hi all,

I just cloned and deployed the last version of DevStack and when trying to login to Dashboard I get the following trace

####

Environment:

Request Method: GET
Request URL: http://127.0.0.1/admin/

Django Version: 1.4.3
Python Version: 2.7.3
Installed Applications:
['openstack_dashboard',
 'django.contrib.contenttypes',
 'django.contrib.auth',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.humanize',
 'compressor',
 'horizon',
 'openstack_dashboard.dashboards.project',
 'openstack_dashboard.dashboards.admin',
 'openstack_dashboard.dashboards.settings',
 'openstack_auth']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'horizon.middleware.HorizonMiddleware',
 'django.middleware.doc.XViewMiddleware',
 'django.middleware.locale.LocaleMiddleware')

Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  111. response = callback(request, *callback_args, **callback_kwargs)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py" in dec
  38. return view_func(request, *args, **kwargs)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py" in dec
  86. return view_func(request, *args, **kwargs)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py" in dec
  54. return view_func(request, *args, **kwargs)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py" in dec
  38. return view_func(request, *args, **kwargs)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py" in dec
  86. return view_func(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py" in view
  48. return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py" in dispatch
  69. return handler(request, *args, **kwargs)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/tables/views.py" in get
  155. handled = self.construct_tables()
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/tables/views.py" in construct_tables
  146. handled = self.handle_table(table)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/tables/views.py" in handle_table
  118. data = self._get_data_dict()
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/tables/views.py" in _get_data_dict
  182. self._data = {self.table_class._meta.name: self.get_data()}
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/dashboards/admin/overview/views.py" in get_data
  38. data = super(GlobalOverview, self).get_data()
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/usage/views.py" in get_data
  34. self.usage.get_quotas()
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/usage/base.py" in get_quotas
  115. _("Unable to retrieve quota information."))
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/usage/base.py" in get_quotas
  112. self.quotas = quotas.tenant_quota_usages(self.request)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/utils/memoized.py" in __call__
  33. value = self.func(*args)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/usage/quotas.py" in tenant_quota_usages
  88. floating_ips = network.tenant_floating_ip_list(request)
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/api/network.py" in tenant_floating_ip_list
  140. return NetworkClient(request).floating_ips.list()
File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/api/network.py" in __init__
  31. self.floating_ips = api.quantum.FloatingIpManager(request)

Exception Type: AttributeError at /admin/
Exception Value: 'module' object has no attribute 'quantum'

####

As you may already guessed, I have setted up Quantum with the basic implementation guide, and I'm running the last DevStack version.

My distro is Ubuntu 12.04 LTS.