root@ubuntu:/etc/keystone# openstack token issue Discovering versions from the identity service failed when creating the password plugin. Attempting to determine version from URL.

Internal Server Error (HTTP 500)

 source admin-openrc.sh 
root@ubuntu:/etc/keystone# openstack user list
+----------------------------------+-------+
| ID                               | Name  |
+----------------------------------+-------+
| 2b558c4e31544074941effed1bf7b4b4 | admin |
| 8d4c7bd645d04d4480c4dd4d5f953963 | demo  |