Error when trying to open my asp.net 4.5 MVC web application using VS 2012. Asp.net has not been registered on the server

user_1146775 0
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I have a Windows Server 2012 R2 & Visual Studio Professional 2012. now i use to develop an asp.net 4.5 mvc 4 web application without any problem. but now when i try to open the project i will get this error:-

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if i click OK then this error:-

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if i click OK the visual studio will stop working

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so can anyone adivce what is going on ??

and here is how the Turn windows features on/off looks like:- enter image description here

Now i did this modification, as i read on a post in the internet that deleting the cache might help. so i removed this folder:-

%LocalAppData%\Microsoft\VisualStudio\11.0\ComponentModelCache

then i tried to open the Visual Studio, and i got the same 2 errors, but the visual studio did not stop working, and i was able to modify the code i rebuild the project and run it.. so not sure what is going on ?

windows-server-2012-r2 visual-studio-2012 asp.net-mvc asp.net .net
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