How can I manually convert an ASP.NET MVC 2 application to MVC 3?

Does anybody know the minimum steps that are required to be done in order to convert an MVC 2 (.NET 4) application to MVC 3?

I tried the upgrade tool, but it gives errors for my开发者_运维百科 solution.

There was a bug in the upgrade tool when a solution had solution items or web sites. The bug has been fixed and an updated version of the tool is available on codeplex: http://aspnet.codeplex.com/releases/view/59008.

More information on my blog: http://blogs.msdn.com/b/marcinon/archive/2011/01/13/mvc-3-project-upgrade-tool.aspx