[Mono-list] GTK error

[Mike Flippin]

I've gotten this error in Windows 2000 and RH Linux 8:

GTKTest.cs(8) error CS0246: Cannot find type `Window'
GTKTest.cs(9) error CS0246: Cannot find type `Button'
Compilation failed: 2 error(s), 0 warnings


The code is

using System;
using Gtk;

public class GTKTest
{
        public static void Main(string[] args)
        {
                Window w;
                Button b;
                Application.Init();
                w=new Window("Hello");
                b=new Button("Click Me!");
                w.Add(b);
                w.ShowAll();
                Application.Run();
        }
}

Anyone know what the problem is?