C# - JScript Runtime Error: AjaxControlToolkit Requires .NET 4.0?

Mar 30, 2011

I implemented a simple autocomplete method using AJAX Autocomplete Extender through this video:http://www.asp.net/ajax/videos/how-do-i-use-the-aspnet-ajax-autocomplete-controlI am pulling from the web service for my data. Nothing major...But when I am running the application .NET is throwing me this error: Microsoft JScript runtime 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.This is my code for the textbox that implements extender:

<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
<Services>
<asp:ServiceReference Path="~/WebService1.asmx" />
</Services>
[code]...

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