Exception of type 'System.Web.HttpUnhandledException' was thrown.<br/>Extender control '00000000-0000-0000-0000-000000000000_cb1fa007-5455-2d62-8db9-335af19dd008' is not a registered extender control. Extender controls must be registered using RegisterExtenderControl() before calling RegisterScriptDescriptors().
Parameter name: extenderControl