AJAX Toolkit Problem

Question

Hi...........

I facing problem in ASP.Net. I have used AJAX Toolkit in my Web project. In my project when i try to check error by pressing F10 and F11 then  every time a window opens  to open the Ajax Toolkit.cs file and if i press cancel then the checking of error stops at that moment. Due to this i not able to check all the error the project.

Plz help me to solve this problem