Uncaught Error: AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. Ensure the correct version of the scripts are referenced. If you are using an ASP.NET ScriptManager, switch to the ToolkitScriptManager in AjaxControlToolkit.dll.
Refer:
thanks for your response ..but its not working for me.
I Found another solution for this problem.
I just deleted this dll Microsoft.ScriptManager.MSAjax.dll and its working fine.
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