Hello all, this is probably very simple, but I still can't see why it's happening. I would like to use Xamarin Studio 4.0.10 on my Mac OS X, v. 10.8.5. I have some simple programs, such as the ones attached, which run on online compilers, but in Xamarin, I only get
Build failed. Object reference not set to an instance of an object Build: 1 error, 0 warnings
Does anyone know why that happens? Thank you very much!