AJAX :: Unable To Load Type 'System.Web.UI.ScriptReferenceBase' From Assembly

Sep 6, 2010

I'm using Visual Studio 2008 and i downloaded the toolkit from Codeplex,I downloaded the zip file which i've marked red in the below link..This is my code, [Code]....

& this is the error i get," Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' "

I saw this post,http://forums.asp.net/p/1273185/3439540.aspx and

i changed my TOOLSCRIPTMANAGER into SCRIPTMANAGER & now i get this error
http://forums.asp.net/t/1529516.aspx

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