Site don't work after update telerik libraries 2010.2.929.35 -> 2010.3.1317.35

[Dominios Molinos]

Hi!
I was working on asp.net application in VS2008 and asp.net ajax controls version 2010.2.929.35 and it was working fine.
A cuple of days ago I installed the lastest version of asp.net ajax controls (ver 2010.3.1317.35) and I upgrade my solution with this version, and after that the site begun to throw javascript exceptions: sys is undefined

The first exception is:
IExplorer error:

• Línea: 67
• Error: Error al cargar el marco de trabajo de cliente ASP.NET Ajax.

In Debug mode this is the exception:
<script type="text/javascript">
//<![CDATA[
if (typeof(Sys) === 'undefined') throw new Error('Error al cargar el marco de trabajo de cliente ASP.NET Ajax.');
//]]>

After that, all exception are: 'Sys' no está definido (sys is undefined).

If I go back to the previous version, It starts to work again.

Thanks in adavnce,
Alejandro

[Prangadj]

I gave possible answer in this forum, Alejandro:http://www.telerik.com/community/forums/aspnet-ajax/ajax/397086-asp-net-ajax-client-side-framework-failed-to-load.aspx

Prangadj