'undefined' is null or not an object

[Robert Columbia]

I am getting the following client-side error message.  It appears that Telerik's JavaScript is failing.  Can anyone give me a kick in the right direction as to how to figure out what might be going wrong?

Here is the Telerik javascript that appears to be failing:

 

 

Sys.UI.Control=function(a){Sys.UI.Control.initializeBase(this);this._element=a;
<line 6, char 94383>
a.control=this};

 

 

Microsoft Windows 7 Professional
Microsoft Internet Explorer 8
Telerik RadControls for ASP.NET AJAX 2011.1.315.35


Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
Timestamp: Fri, 20 May 2011 18:16:23 UTC

Message: 'undefined' is null or not an object
Line: 6
Char: 94383
Code: 0
URI: http://mydevbox.reisys.com/WebSamplesInternal/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ctl00_REIRadScriptManager1_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d3.5.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3afab31106-1bd6-4491-9a14-59e0fc4a7081%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%3aen-US%3ae4ca4719-c559-4761-8501-9be20bbda1fe%3a16e4e7cd%3af7645509%3a24ee1bba%3a1e771326%3a4cacbc31%3ab7778d6c%3aed16cbdc

 

[Simon]

Hello Robert Columbia,

Please troubleshoot the problem on your end by following the suggestions in this blog post.

If you have additional questions, please let me know.

Greetings,
Simon
the Telerik team