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  • Christian Coan 1 post 71 karma points
    Oct 20, 2021 @ 12:14
    Christian Coan
    0

    An asynchronous module or handler completed while an asynchronous operation was still pending

    When publishing any page associated with any document type, I receive the error:

    System.InvalidOperationException : An asynchronous module or handler completed while an asynchronous operation was still pending.
    

    Locally, this works fine but as soon as we deploy to an AWS virtual machine, we begin to get the error when clicking the "Save & Publish" option. Saving the document works fine as well. We have added full Read/Write permissions to the site globally in an effort to see if this is what was causing it.

    Also occasionaly the page does publish successfully but we get an error on the DependencyHandler.axd

    Cannot read properties of undefined (reading '0')
    

    Both of these issues seem interconnected in some way but I'm not sure how. We are using SEOChecker for all of our document types and I did have a feeling that this might be causing the issue but again, I don't know.

    Has anyone else seen this issue before?

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