When attempting an ESX (not ESXi)Replication job it fails with the following:
"Error Message: Value cannot be null. Parameter name: host"
A possible cause of this is that a Virtual Appliance may be incorrectly added to vRanger Virtual Appliance Configuration.
This VA is not needed and may been added incorrectly to the ESX host.
Go to Tools - Options - Configuration Options - Virtual Appliance Configuration
Remove the VA