Visual Studio 2008 WPF Project error "project type is not supported"

Question

I'm running Windows 7 x64 with Visual Studio 2008 (SP1). Yesterday I came across an issue when creating WPF projects. I don't know if I've created any other WPF projects since I installed Win7.

First of all, in the Create Project dialog, the project type says "csWPFApplication" which is weird enough and I never noticed before. When I try creating the project I get 2 Package Load Failure errors for Microsoft.VisualStudio.Internal.WPFFlavor.WPFPackage and then a message that "The project file ... cannot be opened. The project type is not supported by this installation.

I tried a number of different suggestions from Google and even uninstalled/reinstalled to no avail. Any ideas?

Answer 1

Try starting Visual Studio with.

C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe /resetskippkgs

I would also try to just create a blank solution/WPF project. and then add the files from your old project one at a time, and see if you still get the error.

If that doesn't work, I would try to uninstall and reinstall .NET 3.5 which looks it could be corrupt.