This error appears in the Status & Errors log and does not affect a particular document or folder.

Error Information:

EXCEPTION: Error checking SharePoint Sites.

EXCEPTION: Could not load file or assembly 'Microsoft.SharePoint.Client, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The system cannot find the file specified.

System.Exception: Error checking SharePoint Sites. ---> System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.SharePoint.Client, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The system cannot find the file specified.

at PMAPS.IndexingService.SharePointIndexer.CheckSharePointSites(String _indexerID, IndexedData webProWebService)

at PMAPS.IndexingService.Scheduler.CheckScheduleAndRunScanOnce(IndexedData webProWebService)



Resolution:

This error can be resolved by downloading the Microsoft SharePoint Client onto the computer where the Indexer is running. Even if you are not using the SharePoint Connector, or indexing a SharePoint folder, the Indexer loads up certain files when it starts scanning even if they are not used. The error does not indicate any problem as is, but you can eliminate it by adding the component on the computer.

It can be downloaded directly from Microsoft: