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Visual Studio 2012: Web Project is incompatible

PUBLISHED 12 June, 2012 ()

The problem

So you just installed Visual Studio 2012 and hit your .sln file for the very first time. Visual Studio boots up and you feel excited. Then bang, you see something like this:

VS2012 MVC bug

I’ve also seen errors like these:

The reason is that Visual Studio 2012 doesn’t support ASP.NET MVC 1 or 2.

The solution

Download and run the ASP.NET MVC 3 Application Upgrader on your solution. After doing that you should be able to open your solution.

If your project isn’t using MVC or you can’t get the upgrader to run, try following Eilon’s post.

Thanks to Eilon for pointing out the correct solution in comments.

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