Xcode 4.4 + MacRuby = "macruby.h not found" (OS X 10.8 Mountain Lion)

Question

I get the following error when trying to run a basic "Hello world" application in MacRuby on Xcode 4.4 in OS X 10.8 Mountain Lion:

"macruby.h not found"

How to resolve this problem?

Answer 1

Try adding /Library/Frameworks to the framework search path. Make sure you tick the checkbox as well.