Pin placement with altera lvds core

I believe you are correct here, removing the clock input cleared the error. I was able to hook the input clock up to G15 and it seemed to work but how do I figure this out from the datasheet? I didn't see anything in the datasheet for the cyclone V and I was looking through Clock Networks and PLLs in Cyclone V Devices but it mostly just talked about how they worked not how to translate pins to lvds locations.