I'm using System Center 2012 Data Protection Manager. I've had to build a new DMP server.
I couldn't remove any of the agents via the DPM admin console so I had to manually uninstall them from all the agents then reinstall them from the new server.
This all went well except for one server. I can't uninstall the agent at all. When I try to uninstall it manually from the agent machine I get the following error:
"There is a problem with this Windows Installer package. A DLL required for this install to complete could not be run. Contact your support personnel or package vendor."
When I try to uninstall it from the admin console on the old DPM server I get the following error:
"Install protection agent on SERVERNAME failed:
Error 314: The agent operation failed because an installation is already in progress on SERVERNAME Recommended action: Wait for the installation to complete and then retry the agent operation."
Basically I'm stuck. I know if I can uninstall the agent off the agent machine I'll be able to reconnect it to the new server.