[Ajax.AjaxMethod()] Not working in Visual studio 2013

Hi,

I am Upgrading my project from VS2010 to VS2013.

I am calling Ajax methods from Javascript. By using [Ajax.AjaxMethod()] in .cs page.

In 2010 its working fine.

But in 2013 its giving errors as below 

Failed to load resource: the server responded with a status of 404           ajax/common.ashx not found.

But in our Application ajax folder it self not there.

In Web.config we added below code

<location path="Ajax" inheritInChildApplications="false"><system.web><httpHandlers><remove verb="*" path="*.asmx" /><add verb="POST,GET" path="ajax/*.ashx" type="Ajax.PageHandlerFactory, Ajax" /></httpHandlers></system.web><system.webServer><handlers><remove name="Ajax" /><add name="Ajax" verb="POST,GET" path="ajax/*.ashx" type="Ajax.PageHandlerFactory, Ajax" /></handlers></system.webServer></location>

Even though I am getting same error. 

Then i tried to replace the dll's with latest .net 4.5 ajaxtoolkit Dll's, Tried installing AjaxToolkit via Nuget... Still no luck.

All Ajax methods are not working.

Please help me.

Thanks,

Shivanag.