The version of clr.dll does not match the one mscordacwks.dll was built for

Question

I have a C# console app in Visual Studio 2010 that I can run just fine. When I attempt to run the process in debug mode, I am presented with the following error:

Answer 1

I also updated to Service Pack 1, and made sure Windows updates were up to date, but I was still having the same issue:

"The Version of CLR.dll in the target does not match the one mscordacwks.dll was built for."

Microsoft closed this issue on connect.microsoft.com as not reproducible... Unforgivable, irresponsible support system!!

But on social.msdn.com I was directed to upgrade through this link, and this has resolved the problem in my machine ( Win7,VS2010,target 4.0)

Hope it helps.