I have a asp.net app I'm developing in the .net 4.0 framework. I just started getting an jscript error like: SCRIPT5022: Sys.WebForms.PageRequestManagerParserErrorException
Internet explorer 9 stops working on my DEV box, and AJAX functionality stops working on tab control post back events for IE. The program works in Firefox fine, and on a different computers using internet explorer 10.
As a potential solution I tried re-install the client framework for 4.0, and it did not resolve the error. I'm not doing any redirects, and it just now started failing for no reason to me.
It’s a pain and I don't understand why ASP AJAX keeps breaking. Needless to say the error returned is no help at all and is very ambiguous and does not help resolve the error.
Why is this continuously being an issue when no major changes to the code occurs? Why does ASP.NET AJAX provide such cruddy feedback and assistance in resolving errors? How do I resolve this?
From my analysis it sounds like it's possible a postback event for one of my controls is not being registered or does not exist. How do I find out which control is causing the error. Why is the error message so generic that it tells you nothing about where the error could be occurring?
Thanks