System.Web.Optimization and Microsoft.Web.Optimization won't load reference in vs 2012

Question

I\'m working on an MVC 4 project started in Visual Studio 2010. Right now I\'m working on a machine with Visual Studio 2012 as I don\'t have access to the machine I was original

Answer 1

I know there are many answers to this issue, but give this a try- open the project in visual studio as an Administrator.It did solve in my case.