Sometimes when you are trying to edit settings of a VM converted from template you will get below mentioned error.
Follow the steps mentioned below to solve the issue:
– Shutdown the VM
– Right click the VM and select Remove from Inventory.
– Go to the Datastore Browser and browse to VM folder which you just removed. Right-click the .vmx file and select Add to Inventory.
That’s it. Now when you try to edit the settings of VM that error will not bother you.