[GNC] Help please. Upgraded from 2.3.4 to 4.12. Worked fine. But database does not load. Win 11.

[Adrien Monteleone]

Unlikely, but you might get lucky. (You really don't have *any* backup 
at all? Really? You've been using a decades old version of GnuCash and 
you never make backups?)

Note, the GnuCash file, by default unless you changed it, is a 
compressed XML file. Uncompressed, it is just plain text and human 
readable. (albeit in a markup language) How the file is arranged has 
changed over the years, but the raw data should still be there.

As for 'developing a problem afterwards' it could be that GnuCash is 
proceeding with data migration in the background, but it may have gotten 
hung up on something, or it is just really taking a long time.

As David noted, running from the command line, or getting a Trace File 
might shed some light as to what is going on.

You *might* get lucky by removing 4.12, going back to 2.3.4, then 
proceeding as I outlined, *but* be darned sure to MAKE A COPY of your 
file before doing so!

Honestly, I'd go the route David suggested first to get some output and 
then report back here what you get.

Also, what do you mean by 'blank screen'? Can you take a screenshot and 
attach it in a reply? (do not paste in-line, it needs to be attached)

Maybe do that FIRST, and then once we see what you see, we can advise 
further.

Regards,
Adrien

On 10/19/22 10:13 PM, Rosepetals wrote:
> I don’t have a backup of the 2.3.4 database. Is there a way to recover data
> from the current 4.12 database?
> 
> Also why does Gnucash work fine after the database upgrade but then develop
> a fault afterwards?