I am trying to install Openstack using DevStack. After correctly creating the user stack and running ./stack.sh, the script starts to install the required dependencies until it hits Obtaining file:///opt/stack/cinder. Then I obtain the following errors:
Exception:
ContextualVersionConflict: (grpcio 1.21.1 (/usr/local/lib/python2.7/dist-packages), Requirement.parse('grpcio<1.16.0,>=1.0.0'), set(['tooz']))
I understand that there is a conflict in grpcio, but I don't know how to solve it. I already unsuccessfully tried to install a specific version between 1.0.0 and 1.16.0.
The Devstack version I am using is the latest from the git master.
I think I solved the problem myself.
I had the tooz package installed with version 1.62 which was causing the issue.
After removing that package the installation completed.