The following error is displayed while trying to setup replication:
"Version string portion was too short or too long."
There is a registry mismatch of the Target Core ID, from the Source and Target Core Servers.
Quest Software does not provide support for problems that arise from improper modification of the registry. The Windows registry contains information critical to your computer and applications. Make sure you back up the registry before modifying it. For more information on the Windows Registry Editor and how to back up and restore it, refer to Microsoft Article ID 256986 “Description of the Microsoft Windows registry” at Microsoft Support.
Go to source core> stop service> open registry > navigate to HKEY_LOCAL_MACHINE\SOFTWARE\AppRecovery\Core\Replication\RemoteCores\Slaves\##Core_ID##\PairingStatus\
and delete blank key "Version" >start service.