Each type of cluster update requires a specific PAK file. Make sure you are using the correct one.
Download the Correct PAK files
To update your vRealize Operations Manager environment, you need to download the right PAK file for the clusters you wish to upgrade. In case modifications are required, you can manually update the hosts file after completing the software update.
To download the PAK file for vRealize Operations Manager, go to Download VMware vRealize Operations page.