I'll give it a shot.
The Warg resource is under CoreWorldResources.XML but this doesn't seem to be it. Mentions "Kennel".
We need to find the building.
Find the EmpireUnlimitedImprovements.xml and look for Kennel. Sure enough, it's there!
Try deleting the code in here:
Code: xml
- <Prereq>
- <Type>Allegiance</Type>
- <Attribute>Empire</Attribute>
- </Prereq>
I'd keep the <prereq> and </Prereq> though...
If that doesn't work you'll probably need to enable the technology to build the Kennel. It isn't easy but it's certainly possible with a little coding, understanding, and Detective work.