Hi everyone Install devstack by http://docs.openstack.org/developer/devstack/ Install tox by docs.openstack.org/project-team-guide/project-setup/python.html command 'tox', the error log: pip-missing-reqs runtests: PYTHONHASHSEED='952003835' pip-missing-reqs runtests: commands[0] | pip-missing-reqs -d --ignore-file=nova/tests/* --ignore-file=nova/test.py nova Traceback (most recent call last): File ".tox/pip-missing-reqs/bin/pip-missing-reqs", line 7, in <module> from pip_missing_reqs.find_missing_reqs import main File "/opt/stack/nova/.tox/pip-missing-reqs/local/lib/python2.7/site-packages/pip_missing_reqs/find_missing_reqs.py", line 14, in <module> from pip.utils import get_installed_distributions, normalize_name ImportError: cannot import name normalize_name ERROR: InvocationError: '/opt/stack/nova/.tox/pip-missing-reqs/bin/pip-missing-reqs -d --ignore-file=nova/tests/* --ignore-file=nova/test.py nova '____________________________________________________________________ summary ____________________________________________________________________ ERROR: py34: could not install deps [-r/opt/stack/nova/test-requirements.txt]; v = InvocationError('/opt/stack/nova/.tox/py34/bin/pip install - chttps://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt -r/opt/stack/nova/test-requirements.txt (see /opt/stack/nova/.tox/py34/log/py34-1.log)', 1)ERROR: py27: commands failed functional: commands succeeded pep8: commands succeeded ERROR: pip-missing-reqs: commands failed Is there any suggestion? Best Regardszhaolihui -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20160414/b707f9de/attachment.html>