VS 2010 designer error 'Could not find type XYZ' in Windows7. Works fine in XP

Question

I\'m stuck on a problem in VS 2010 C# .NET. I\'ve had a project on Windows XP that includes forms, classes and a handful of my own custom components. These components are si

Answer 1

1. Clean the solution
2. Build the project containing the Control
3. Add the control to the toolbox/form

See if this works.

Answer 2

Look at your references and find any that have exclamation point icons. Remove the bad references and add them back to your project.

Answer 3

Did you rebuild your components from scratch?

Are the projects included?

Are they all building?

Are they all building on the same platform (x86 vs x64)?