Sys is not defined error

[Ken]

I am having trouble with the combination of Firebug and telerik libraries.  I repeatedly have to click through the same error.

This is the error I get on a lot of my pages when Firebug is running

Error: Sys is not defined
Source File: http://localhost:4419/ScriptResource.axd?d=4YWYB8JWwlSYGWUpzaxJpu5zp2VQZvr9Q-VoD1ikPb81d2yrwStVHsh4z2T4edcj0&t=633598403259876192
Line: 854



This corresponds to this section of code

catch(ex){
Sys.CultureInfo.prototype._getAbbrMonthIndex=function(_dc){
if(!this._upperAbbrMonths){
this._upperAbbrMonths=this._toUpperArray(this.dateTimeFormat.AbbreviatedMonthNames);
}

I like Firebug so if you can help me figure out how to avoid this error it would great.

[Daniel]

Hello Ken,

Could you please let us know how to reproduce the error? A simple example or short instructions would be really helpful. In this way we will be able to give you more to-the-point answer.

In the meantime I suggest you examine the following blog post:
Web Resources demystified: Part 3 (Troubleshooting)

Kind regards,
Daniel
the Telerik team

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