This is a migrated thread and some comments may be shown as answers.

Sys.WebForms is undefined in Telerik.Web.UI.Ajax.Ajax.js

1 Answer 13 Views
General Discussions
This is a migrated thread and some comments may be shown as answers.
Shane
Top achievements
Rank 1
Shane asked on 19 Nov 2013, 12:28 AM
Hey guys,
I have a master page with a RadScriptManager, RadAjaxManager, and RadLoadingPanel. This morning the site was running flawlessly, then suddenly and without changing anything it started throwing a javascript runtime error every time I try to load it. The error is getting thrown in Telerik.Web.UI.Ajax.Ajax.js in set_uniqueID. The problem is that Sys.WebForms is undefined. I've tried everything I can find on the web to fix it. I've cleared the Temporary ASP.NET folder, removed the <xhtmlConformance> tag from the web.config. I've even reverted back to the baseline code from the previous build. But nothing has helped. Any idea how this can happen out of nowhere like that?

1 Answer, 1 is accepted

Sort by
0
Peter Filipov
Telerik team
answered on 20 Nov 2013, 09:36 AM
Hi Shane,

Could you provide us a live URL to test you site. Probably some resources could not be loaded and we need to inspect it with fiddler. Does the site work on a development machine?

Regards,
Peter Filipov
Telerik
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to the blog feed now.
Tags
General Discussions
Asked by
Shane
Top achievements
Rank 1
Answers by
Peter Filipov
Telerik team
Share this question
or