Error: Inheritance security rules violated by type: ‘System.Web.WebPages.Razor.WebPageRazorHost’

From my friend Claudio Redi’s comment the solusion of this problem is:

Try removing the System.Web.Razor assembly binding in the web.config if present. http://forums.asp.net/t/1968686.aspx?Installed+Nuget+package+Razor+Engine+whole+system+stops