openstack-nova: unable to launch an instance: ERROR (ClientException): Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible. <class 'keystoneclient.exceptions.NotFound'> (HTTP 500) (Request-ID: req-97514f6e-cf84-4413-a1d2-4ac5d2be648c) Environment: instack-undercloud-2.2.2-2.el7ost.noarch openstack-tripleo-heat-templates-0.8.7-12.el7ost.noarch Steps to reproduce: 1. Deploy an overcloud. 2. Attempt to launch an instance. Result: nova boot --nic net-id=d8252461-5804-4bdc-ac27-1c73c3906816 --image cirros1 --flavor 1 VM1 ERROR (ClientException): Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible. <class 'keystoneclient.exceptions.NotFound'> (HTTP 500) (Request-ID: req-2ce72922-0364-417e-8b72-9eadc0062d7d)
*** This bug has been marked as a duplicate of bug 1309135 ***