I have got the following error when I tried to build an ASP.NET web site application.
Could not load file or assembly 'AjaxControlToolkit' or one of its dependencies. The system cannot find the file specified.
I had registered the assembly by using the following code:
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxControl" %>
I have solved the problem after copying the AjaxControlToolkit.dll into the /bin folder of the web site application.