Hi Forums,
I'll try to be as clear as possible with what I did to get this error and how I've tried to solve it, but feel free to inquire if I can add any additional information.
I have created an STP file by downloading a list from a SharePoint 2010 instance, then I've converted that STP to a CAB file and extracted the Manifest.xml file.
I then updated the only Lookup column in the file to the new GUID of the list in a SharePoint 2016 instance, and then used the makecab function to create a new STP file, and uploaded that to my SP16 instance. This method has worked on all other lists I have tried so far.
When I attempt to load this list after creation I get an error "Unable to open Lookup list {GUID}, Error was 0x81020026."
When I try to use /_layouts/listedit.aspx?List={GUID}(this is in the correct format) on the old SP10 instance to try and load the list and move it, I get a "List does not exist" error. I also cannot find any references to the GUID in the Manifest File.
Any ideas on solving this one?