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Error: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object, How to resolve it? RRS feed

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    User-1218663985 posted

    I'm working in a web application that work in asp.net with Ajax but I have a problem, I'm having the message error:

    Error:

    Sys.Webforms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object

    This is Image link http://postimg.org/image/s6tpnjsjt/  Please visit and see error screen shot.

    My System was stable for 20 minutes after 20 minutes i clicked on any button but page is not responding and above error raised.

    How can i resolve this? Thanks in advance.

    Wednesday, December 24, 2014 5:24 AM

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    User61956409 posted

    Hi ZA_Learner,

    Thanks for your post.

    Object reference not set to an instance of an object

    The Object reference not set to an instance of an object exception will comes when a null or empty object is tried to use. I recommend to debug your code to find the relevant code which causes the problem.

    My System was stable for 20 minutes after 20 minutes i clicked on any button but page is not responding and above error raised.

    Have you used session or cookie? Maybe it is expired.

    Hope it will be helpful for you.

    Best Regards,

    Fei Han

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Wednesday, December 24, 2014 9:44 PM