Question

I’ve decided to learn Visual Basic .Net as this is what some of my colleagues work with, and this will allow me to work with them on projects.

I have purchased Microsoft Visual Basic 2010 Step by Step and downloaded the sample files. When I am trying to debug the first sample application (a Windows form), it is telling me that it can’t load System.Drawing V4.0.0.0. However, if I create a new Windows Form application (C# or VB.Net) this works fine.

I had a look at the References tab in the project settings and System.Windows.Forms is referenced, but the version referenced is 2.0.0.0. I have removed and re-added this reference and it stays at 2.0.0.0 and I still get the error.

Does anybody have any ideas as to what may be going on?

I am using Visual Studio 2010 Professional.

Thanks

Answer 1

This is because of a discrepancy in the target framework. v4.0.0.0 is targeting .NET framework v4.0 – v2.0.0.0 is targeting .NET framework v2.0. You can change the framework target for your project in

Project -> 
   (myProject) Properties... -> 
      Compile -> 
         Advanced Compile Options -> 
            Target Framework...