How to avoid this problem in ASP.NET AJAX

Question

Anybody knows how to solve this problem???

Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.

Kalyan Vedantam · Answer

Hi You are probably calling some code inside a update panel or some other AJAX control and the code is throwing some errors that you have not handled in a catch block.so check for some unhandled errors by debugging the code block.That is what the problem most likely is.

How to avoid this problem in ASP.NET, AJAX