Sharepoint 2016 Search Schema - An unknown error occurred.

Weems, Jason 1 Reputation point
2020-12-03T21:07:53.027+00:00

I am trying to fix an issue with my people search not working properly. I have cleared the config cache and reset the index and preformed a full crawl but I am getting errors from the crawl all of the errors are "The content processing pipeline failed to process the item." Which upon researching that error I found that I should check the logs with ULS Viewer to look for an error pertaining to failing to map a managed property. I didn't find that in any of the logs. I went to look at the managed properties and when I go to the Search Schema I cannot view ANY of the properties and all I get is An Unknown Error Occurred at the top of the page, when I try to search for a property no results are displayed. The same for crawled properties and when I click on the Categories tab it shows all of the managed property categories all list 0 properties in the category. I have several custom properties I do NOT want to recreate this search service AGAIN. Please help.

SharePoint Server Management
SharePoint Server Management
SharePoint Server: A family of Microsoft on-premises document management and storage systems.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Itch Sun-MSFT 2,556 Reputation points
    2020-12-04T07:15:11.837+00:00

    Hi @Weems, Jason

    This error may be caused by set the Allow multiple values to True of a Managed Property but the Site Column does not accept multiple items.

    Please log in to your application server where the search is configured and open the recent ULS log and do a keyword search for “Content processing”.

    Removed Multi from the managed properties and ran the full crawl.

    SharePoint Search Application Returns “The Content Processing Pipeline Failed To Process The Item” Error On Crawl

    Please note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information

    If the problem persists, re-create the manage property and full crawl.


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