Orchard Web App install problem

Hi Guys

I've just installed the Orchard cms via the web installer and i get the following error when browsing the site:

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Server Error in '/portal' Application.


Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: Could not load type 'Global'.

Source Error:


Line 1: <%@ Application Language="C#" CodeBehind="~/App_Code/Global.asax.cs" Inherits="Global" %>



Source File: /portal/global.asax Line: 1

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.233

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Is there something i've missed? IIS was set to ASP.NET 4 prior to install.

Mark

 

make sure there's no duplicate global.asax in the application directory