Migrating my MVC 3 application to MVC 4

Question

I really do not know what to do, I\'m following this article that shows how to migrate my MVC 3 application manually .

I followed all the steps but

Answer 1

this is very simple, when you update to MVC 4.0.0.0 ,but the webconfig in the solution still points to MVC 3.0.0.0.0. so just replace MVC version 3.0.0.0.0. by 4.0.0.0.0

Do the same with other assemblies, to check the version of assembly , check properties of the respective assembly in references in your project.