[CLOSED] Compile error - WebPages is not a member of System.Web

I downloaded ext.net.pro.2.0.0.DP1.zip, extracted and opened VS10 solution. I did a build and got the following error 8 times within the AbstractComponentBuilder class:

The type or namespace name 'WebPages' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)

Am I missing a reference? :-)

First, please update from 'http://svn.ext.net/premium/branches/2.0' (DP1 is very old code and should not be used)
Second, v2 requires .NET 4.0 and MVC3

Thanks, that worked. Is there source code for Ext.Net.Utilities?

Here is Ext.NET.Utilities.
https://github.com/extnet/Ext.NET.Utilities