i'm still having problems with my compiler errors and the code is all right what is the problem cause it's not my code.

this is the pop up i’m getting right now ‘Assets/Builds/Roll a Ball Mac Cloherty .app/Contents/Resources/Data/Managed/Assembly-CSharp.dll’ shouldn’t be queried by IsAssemblyCompatible, missing IsInternalOrCompiledAssembly check ?

so i really don’t know what my problem is at all.

Sounds like it might be problem between Unity and Visual Studio.

Try switching to MonoDevelop to see if this fixes the problem.