Open Stack

Hi,


   when i login dashboard , error :

Unable to get usage info: Invalid service catalog service: nova

ERROR:django_openstack.dash:ApiException in instance usage
Traceback (most recent call last):
  File
"/opt/openstack-dashboard/django-openstack/django_openstack/dash/views/instances.py",
line 174, in usage
    usage = api.usage_get(request, tenant_id, datetime_start, datetime_end)
  File "/opt/openstack-dashboard/django-openstack/django_openstack/api.py",
line 313, in inner
    return f(*args, **kwargs)
  File "/opt/openstack-dashboard/django-openstack/django_openstack/api.py",
line 642, in usage_get
    return Usage(extras_api(request).usage.get(tenant_id, start, end))
  File "/opt/openstack-dashboard/django-openstack/django_openstack/api.py",
line 367, in extras_api
    (request.user.token, url_for(request, 'nova')))
  File "/opt/openstack-dashboard/django-openstack/django_openstack/api.py",
line 296, in url_for
    raise ServiceCatalogException(service_type)
ServiceCatalogException: Invalid service catalog service: nova (HTTP 404)
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