I have installed visual studio 2012(supporting MVC4 and .NET 4.5) and Sitecore CMS 7.2 rev.140526. I am able to run the Sitecore using admin user and launch the website too.
I was going through this tutorial on MVC integration with Sitecore which creates an MVC application in visual studio and then integrates in the Sitecore CMS site. When I followed the same steps I got error. The MVC version used in this tutorial is MVC3 and the Sitecore version is 7.1.
I have tried the same in my machine but got the error Could not load file or assembly 'System.Web.Mvc, Version=5.1.0.0. From the error I understand that it is looking for MVC5 but in machine I have only MVC4.
Is there any way to resolve this? First of all, is Sitecore 7.2 is compiled in MVC4 or MVC5?
Here is the Sitecore compatibility table:
https://kb.sitecore.net/articles/087164
It clearly states that Sitecore 7.1 is compatible with MVC 4 but newer versions of Sitecore (7.2 and 7.5) do not support MVC 4 and they require ASP.NET MVC 5.1