AjaxControlToolkit.Properties.Resources.NET4.resources Error

若發現有下列錯誤
請不要被誤導，以為是資源檔錯誤
這個錯誤是你忘了加入

<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">

在AJAX ToolKit中要使用控制項，要記得也要把ToolkitScriptManager加入才行

Server Error in '/' Application.

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Could not find any resources appropriate for the specified culture or the neutral culture.  Make sure "AjaxControlToolkit.Properties.Resources.NET4.resources" was correctly embedded or linked into assembly "AjaxControlToolkit" at compile time, or that all the satellite assemblies required are loadable and fully signed.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Resources.MissingManifestResourceException: Could not find any resources appropriate for the specified culture or the neutral culture.  Make sure "AjaxControlToolkit.Properties.Resources.NET4.resources" was correctly embedded or linked into assembly "AjaxControlToolkit" at compile time, or that all the satellite assemblies required are loadable and fully signed.

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Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1