ERROR nova.objects.cell_mapping [None req-34831485-adf4-4a0d-bb20-e1736d93a451 None None] Failed to parse [DEFAULT]/transport_url to format cell mapping: AttributeError: 'NoneType' object has no attribute 'find'
ERROR nova.objects.cell_mapping Traceback (most recent call last):
ERROR nova.objects.cell_mapping   File "/opt/stack/nova/nova/objects/cell_mapping.py", line 150, in _format_mq_url
ERROR nova.objects.cell_mapping     return CellMapping._format_url(url, CONF.transport_url)
ERROR nova.objects.cell_mapping   File "/opt/stack/nova/nova/objects/cell_mapping.py", line 101, in _format_url
ERROR nova.objects.cell_mapping     default_url = urlparse.urlparse(default)
ERROR nova.objects.cell_mapping   File "/usr/lib/python2.7/urlparse.py", line 143, in urlparse
ERROR nova.objects.cell_mapping     tuple = urlsplit(url, scheme, allow_fragments)
ERROR nova.objects.cell_mapping   File "/usr/lib/python2.7/urlparse.py", line 182, in urlsplit
ERROR nova.objects.cell_mapping     i = url.find(':')
ERROR nova.objects.cell_mapping AttributeError: 'NoneType' object has no attribute 'find'
ERROR nova.objects.cell_mapping