Visual Studio 2010 error: “Project Target Framework Not Installed” when opening a .NET 4.0 project

Question

I am experiencing a rather disconcerting issue with one of my development machines that I hope someone can advise me on.

I have a large Visual Studio 2010 VB solutio

Answer 1

Elsewhere I've seen: In VS 2010, the tag was changed to , and we no longer support "Full"; that's why you're getting the error. Until we fix this, you can just remove the tag from your project file, and the project should open properly.

If you don't have TargetFrameworkProfile specified in your project files then in MPF (at least) it defaults to the latest. And may be confused about whether it's installed.