Hi openstack development team, When i want install horizon with pip3 i recieve and error: Could not satisfy constraints for horizon: installation from path or url cannot be constrained to a version. Please help me Best regards Mahdi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20200828/359a8379/attachment.html>