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Adding AJAX-enabled WCF Service to the Solution throws an error

Posted By:      Posted Date: September 15, 2010    Points: 0   Category :ASP.Net
 
Hi I am just trying to learn Ajax enabled WCF service, when I try to create a new web application and add new item "AJAX-enabled WCF Service" I get an error message that "The extension of type 'System.ServiceModel.Configuration.WebScriptEnablingElement, System.ServiceModel.Web, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' is not registered in the extension collection 'behaviorExtensions'. I had .net2.0/VS2005 and then I installed VS2008. I thought it might be an issue with Machine.config. So I am attaching my machine.config info. <?xml version="1.0" encoding="UTF-8"?>    <!--    Please refer to machine.config.comments for a description and    the default values of each configuration section.     For a full documentation of the schema please refer to    http://go.microsoft.com/fwlink/?LinkId=42127     To improve performance, machine.config should contain only those    settings that differ from their defaults.    -->    <configuration>      <configSections>    <section name="appSettings" type="System.Configuration.AppSettingsSection, System.Configuration, Version=2.0.0.0, Culture=neutral, Publi


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