# Revision history [back]

### Packstack: Requirement for python-tinyrpc breaks installation

I successfully set up an all-in-one packstack yesterday. Today, I fail adding a compute node. The log file contains:

Error: Execution of '/usr/bin/yum -d 0 -e 0 -y install openstack-neutron' returned 1: Error: Package: python2-ryu-4.9-2.el7.noarch (centos-openstack-newton)
Requires: python-tinyrpc
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest


Also, yum update on the all-in-one node generates the same error. This is suspiciously similar to an error that recently occurred at a Kolla deployment.

• Should I just wait until the packaging is fixed?
• Are there ways to work around this - how do I add the skip-broken option, for example?