Hello, it said "AttributeError: 'module' object has no attribute 'MultiString'" when I run devstack below, all codes are the latest today, does anyone know why ? thanks in advanced. $ /bak/openstack/keystone/bin/keystone-manage db_sync Traceback (most recent call last): File "/bak/openstack/keystone/bin/keystone-manage", line 30, in from keystone import cli File "/bak/openstack/keystone/keystone/cli.py", line 22, in from keystone import assignment File "/bak/openstack/keystone/keystone/assignment/__init__.py", line 15, in from keystone.assignment import controllers # noqa File "/bak/openstack/keystone/keystone/assignment/controllers.py", line 24, in from keystone.assignment import schema File "/bak/openstack/keystone/keystone/assignment/schema.py", line 13, in from keystone.common import validation File "/bak/openstack/keystone/keystone/common/validation/__init__.py", line 16, in from keystone.common.validation import validators File "/bak/openstack/keystone/keystone/common/validation/validators.py", line 16, in from keystone import exception File "/bak/openstack/keystone/keystone/exception.py", line 18, in from keystone.common import config File "/bak/openstack/keystone/keystone/common/config.py", line 16, in from oslo import messaging File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/__init__.py", line 18, in from .exceptions import * File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/exceptions.py", line 13, in from oslo_messaging.exceptions import * # noqa File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/__init__.py", line 18, in from .notify import * File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/notify/__init__.py", line 23, in from .notifier import * File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/notify/notifier.py", line 32, in help='Driver or drivers to handle sending notifications.'), File "/usr/local/lib/python2.7/dist-packages/oslo_config/cfg.py", line 1039, in __init__ item_type=types.MultiString(), AttributeError: 'module' object has no attribute 'MultiString'

When	Who	Action	New State
2015-02-02	ChangBo Guo(gcb)	Comment	Open
2015-02-02	ChangBo Guo(gcb)	Comment	Open
2015-02-02	Hua Zhang	Confirm	Solved

oslo.config

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