I've recently developed a problem in a local instance of Sitecore (9.2, recently upgraded from 8.2). Upon trying to rebuild sitecore_master_index through the Indexing Manager, after processing for a time it throws an error :

Error from Sitecore

This is the exception as captured in Visual Studio :

Error from Visual Studio

I don't know what state this is leaving the index in, which interferes with work I'm doing which uses it, and since it's happening in external code I have no real insight into what might be causing it. Does anyone know what might cause this, or know how to remedy it? Thanks!

  • Is your solr version matching with your upgraded Sitecore version? Also do you have any custom index or OOTB? Nov 1, 2022 at 14:57
  • We aren't using Solr at this time (still on Lucene). We have a number of custom indexes, but I was only rebuilding sitecore_master_index when the exception was thrown. Nov 1, 2022 at 18:12


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