When I tried to configure multi-node devstack, I got an error. pip is out dated. When I upgrade pip by running this command :- pip install --upgrade pip. it again creates an error. any solution of how to resolve this issue. A. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20160329/75571a3f/attachment.html>