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November 2021

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Subject:
Error message - OAI Harvester
From:
Andrew Clark <[log in to unmask]>
Reply To:
MarcEdit support in technical and instructional matters <[log in to unmask]>
Date:
Wed, 3 Nov 2021 10:59:14 -0400
Content-Type:
text/plain
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text/plain (39 lines) 
Hello all,

I've been attempting to retrieve the set of full-view records from HathiTrust using the OAI Harvester. I get the Initializing Harvesting window, which never seems to make any progress, but I also am getting the following Application Error message:

"If this error occurred while processing a MARC data file, try running the file through the
MARCValidator for more information about structural record issues.
Exception Information:

Message: Object reference not set to an instance of an object.

Source: oai2

Stack Trace:    at oai2.OAI.ListRecords(String sPrefix, String sset, String sfrom, String suntil, ResumptionToken objToken, Object& objHandler)
   at oai2.OAI.ListRecords(String sPrefix, String sset, String sfrom, String suntil)
   at MarcEdit.frmOAIHarvest.cmdOK_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)"


I've never used the Harvester, so I may be missing something. Has anyone else come across this error or had experience retrieving the HathiTrust records?

Thanks in advance for any insight you may have.

Best,
Andrew

​Andrew Clark (he/him/his)
Discovery and Metadata Librarian
Simmons University Library
300 The Fenway
Boston MA 02115
[log in to unmask]

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