Some more data: this morning I was suddenly unable to run Mnemosyne at all
(macOS 10.13.3, upgraded from Sierra to High Sierra a few weeks ago but had
been running every day since). I would get a "Trace/BPT trap: 5" error that
appeared to be happening inside Qt from the stack trace. I had a few old
versions of Mnemosyne so I tried those; 2.4 had the same problem but 2.3.6
I came to this group and discovered 2.6-qt5.10, which seems to be running
fine (though as you say the style has changed somewhat). Thanks for that,
and let me know if I can add any more useful information.
On Monday, February 5, 2018 at 10:43:21 PM UTC-5, Devin Howard wrote:
> Hi Emily
> I'm not really sure what the problem is, but I tried making a special
> build of Mnemosyne 2.6 just for macOS that uses a newer version of some
> internal software ("qt 5.10")
> You can find Mnemosyne-2.6-qt5.10.dmg at
> It looks a little old fashioned for some reason, and it might have
> different bugs, but it's possible it will fix your issue. Stranger things
> have happened!
> Try it out and let me know if it works for you. You should be safe to
> switch between the Mnemosyne-2.6 app and the Mnemosyne-2.6-qt5.10 app if
> you don't like the new version.
> On Monday, January 22, 2018 at 6:29:42 PM UTC-8, Devin Howard wrote:
>> Hi, I tried this out on my machine and I wasn't able to see an error.
>> Could you directly email me your database files so I can try with your
>> set of cards? It should be everything under /Users/<your
>> If you send me that, perhaps I'll be able to find out what the issue is.
>> As Peter said, it would also be interesting to know what version of macOS
>> you are running (which you can find under "About this Mac" in the main
>> apple menu).
>> On Friday, January 19, 2018 at 9:45:55 PM UTC-8, Emily Ritter wrote:
>>> Hello, yesterday I tried to download the new version of Mnemosyne and
>>> now I am no longer able to open the new one or the old one. I have a
>>> Macbook pro and every time I try to open either one, a notification comes
>>> up saying that Mnemosyne has quit unexpectedly. I had about 1000 flashcards
>>> on the original app and I haven't backed them up so I was really hoping
>>> there was some way I could access them again without losing my data! Thank
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