Sys Is Undefined - .NET Ajax Client-side Framework Failed To Load.

Dec 28, 2010

I have seen all the previous posts but did not got any solution. I am using URL routing and the website runs fine untill i change the global.asax file. Till then all the configurations runs properly. The web.config is also correct and ihave added the modules required for URL routing. Now when i change the global.asax file, i get the following error on my masterpage:

if (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.');

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