MasterPage Inherit class file (CodeFileBaseClass)

Hi,
Take a look at this thread:
http://forums.asp.net/p/1301349/2539786.aspx

 

Have a master page, need to inherit from a class(Core.vb) which store in "App_Code", inside the class file have many variable are declared and functions etc.


In the master page, I have set CodeFileBaseClass = "Core"
<%@ Master Language="VB" CodeFile="MasterPage.master.vb" Inherits="MasterPage" CodeFileBaseClass="Core" %>


But I get Could not load type 'Core' error


Anyone could help me?