MeshViewer debug in VS2005 problems

[Ros]

I create a Windows aplicstion project.

In Form1.cs added a CS Tutorial 9 code
http://www.irrforge.org/index.php/CS_Tutorial_9


And i start compiling the source but i had this error of compiler:

Error 1 '_09.WinFormMeshViewer.Form1.Dispose(bool)': no suitable method found to override C:\Documents and Settings\De BaaS\Mijn documenten\Visual Studio 2005\Projects\MechViewer\MechViewer\Form1.Designer.cs 14 33 MechViewer

Whats a problem? [/code]