Missing h-files and Assistant Editor not working because of it (monoTouch/MonoDevelop)

Question

I am missing the .h-files when I just started my HelloWorld in MonoTouch/MonoDevelop. I have the same question as this guy, but the answer provided did not help me.

Answer 1

Problem for me was that I had moved Xcode out of Application folder to another folder. Moving it back fixed it for me.