TP AI_RUNTIME_<SID> not registered

Per the post-install guide, I added my RFC Destinations. My SID is XID, so I set program id to "AI_RUNTIME_XID". When I try to test connection, I get this error:

"TP AI_RUNTIME_XID not registered"

I'm a little new to the ABAP world, so I apologize if this is a newbie question. Can anyone please help me figure out how to move forward?

Thank you