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

I solved this issue for myself by downloading the appropriate Developer targeting pack. I made the mistake of trying to download the Runtime one, which apparently does not include the Visual Basic plug-in that you need.

I am using .NET Framework 4.5.1, and this is the link to the page I downloaded from:

http://msdn.microsoft.com/en-us/library/5a4x27ek%28v=vs.110%29.aspx