[Solved] Sys is undefine & Telerik is undefined

[Duy]

Hi,

My pages was working fine, and don't know what reasons that cause the "Sys is undefined" error message.  I searched some suggestions which did not help much.  I tried to remove RadScriptManager from my page and replace with ScriptManager then I get the error "Telerik is undefined". 

And all my selected skins disappear. 

Regards,

Duy

[Daniel]

Hello Duy ,

May we examine your web.config? Thus we will be able to provide to-the-point answer.

Kind regards,
Daniel
the Telerik team

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[Duy]

Hi Daniel,

Thanks for your promptly replying.  Well, it was not web config problem. My system date was behind the actual date so it caused this error message.  Actually, I could not track it down till I tried to browse it from IIS console, and I got error msg "ASP.NET Ajax client-side framework load failed".  Obvious googling this problem and got it resolved.

Regards,

Duy

[Daniel]

Hello Duy ,

Thank you for sharing the solution with our community. I'm confident that it will help other customers which face the same problem.

Best regards,
Daniel
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.