1. target framework 改成4.52以上
2. Install-Package Microsoft.AspNet.Mvc -Version 5.2.7
3. 移除 System.Web.WebPages.Administration
https://stackoverflow.com/questions/25775234/methodaccessexception-inside-system-web-webpages-migrating-mvc-3-to-mvc-5?r=SearchResults
mvc3 升级mvc5
原文：https://www.cnblogs.com/zitjubiz/p/12726922.html
