Exception of type 'System.Web.HttpUnhandledException' was thrown.<br/>Extender control '00000000-0000-0000-0000-000000000000_67cd2162-ae3c-47b6-98f9-82ee07545b18' is not a registered extender control. Extender controls must be registered using RegisterExtenderControl() before calling RegisterScriptDescriptors().
Parameter name: extenderControl