ELM Upgrade failed because of a failed dependency check for audit-libs-python

When upgrading the ELM you receive a notification that the ELM upgrade failed, and you should revert to your snapshot and try again. That doesn't help. The ELM upgrade process is logged in /var/log/Unidesk/ApplianceUpgrader.log. It's a chatty log, but you can bring it up in an editor vi, nano,...