I've fixed the problems associated with this file which I detailed in my issue report [here](https://github.com/ChrisDill/Raylib-cs/issues/195) (issue #195).
My version of Raylib-cs is slightly different from the bleeding edge master branch but still recent, and my project setup is slightly different too, but I think this change should still work. You should test it to double check though.
356155b5fa