PageRequestManagerParserErrorException

Raised when an error occurs while processing the response from the server. If the response to an asynchronous postback returns without an error but there is an error processing the response in the client, the Sys.WebForms.PageRequestManagerParserErrorException is raised. For information about how to handle this error condition, see Debugging and Tracing Ajax Applications Overview.

see

{@link http://msdn.microsoft.com/en-us/library/bb397466(v=vs.100).aspx}