[GNC] Gnucash suddenly cannot open the data file from Onedrive

[David Cousens]

Mike, 

I'm not exactly sure how OneDrive works but if it is like Dropbox (on
Linux) it has a local copy in a OneDrive folder on your hard disk which
it keeps synchronised with a copy on Microsoft's OneDrive server when
changes are made locally. My memory of using OneDrive a long time ago
was that was how it functioned but I could be wrong?

Are you trying to open a file directly from the server?

Does your local disk have a OneDrive folder and is there a copy of your
datafile in there? You should be able to navigate to that using File-
>Open in GNuCash and then open it.

Has the background program Ha sownership/file permissions on the file
been changed





On Sun, 2026-01-04 at 18:33 -0800, Mike Brady wrote:
> I have identical folders for Gnucash files on a local disk and
> Onedrive. 
> Opens fine from local. But attempting to open from Onedrive (for 
> testing, files marked to always be available on the computer, so they
> should be identical in access time to the main files on the local
> disk; 
> they don't take up a lot of space so I may leave it that way on the 
> laptop if I can get Gnucash to open them again) produces "Unknown I/O
> Error (1002)" from Gnucash 5.14. Literally, it was working yesterday.
> It 
> occurs no matter how I try to open the file - double click from File 
> Explorer, or open from within Gnucash. And, if I copy the files back
> to 
> a new folder on a local drive, it works fine. So what's the story
> here? 
> I don't recall seeing any updates to Onedrive in the last day or so,
> and 
> have been using 5.14 successfully with Onedrive for several weeks
> otherwise.
> 
> Note1: my accounts on both the local machine and at Onedrive are
> listed 
> as having "Full Control" for the .gnucash file.
> Note2: this occurs for ALL .gnucash files in Onedrive, not just my
> main 
> one. So the running incremental backups GC makes are also
> inaccessible 
> with the same error code. Files for other applications open and save 
> normally using Onedrive.
> 
> Is there a list of Gnucash errors in the docs somewhere? I did some 
> light searching and didn't find anything.
> 
> The only current workaround seems to be to manually copy the Onedrive
> folder to a local disk outside of the backup system tied to Onedrive
> and 
> work there, then manually copy everything back when done so the other
> computer can download it. File copies in File Explorer work normally,
> no 
> errors.
> 
> Windows 11, desktop & laptop
> 
> Mike Brady
> Frustrated (today) Plain Old User
> 
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-- 
David Cousens