Error Message while making a copy of a database...

62 views
Skip to first unread message

Anson Glinsky

unread,
May 4, 2026, 12:18:37 PMMay 4
to mementodatabase
Attached is a screenshot of an error message when trying to add an entry to a freshly copied database structure. When I close the messasge, the program shuts down.

Any advice would be helpful.

Thanks,

Anson
Screenshot 2026-05-03 204209.png

Bill Crews

unread,
May 4, 2026, 12:51:16 PMMay 4
to Anson Glinsky, mementodatabase
Well, for one thing, I guess you're using the desktop edition of Memento? What release? If not desktop, what edition and what release? Do you have any other information that could help us (Windows, MacOS, Linux, iOS, Android, version of each, if desktop, version of the JDK)?

--
You received this message because you are subscribed to the Google Groups "mementodatabase" group.
To unsubscribe from this group and stop receiving emails from it, send an email to mementodataba...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/mementodatabase/a8f2cc0a-06f6-4061-908d-bca0e6ae51c0n%40googlegroups.com.

Er Mo

unread,
May 4, 2026, 12:53:19 PMMay 4
to mementodatabase
Hallo
Ist die Bibliothek auf den PC Erstellt und da Ausgefürt . Wenn Ja kannst du versuchen die Bibliothek Neu zu laden von der Cloud


Ernst

digico Iwate (Digico)

unread,
May 4, 2026, 3:49:41 PMMay 4
to mementodatabase


Hi Anson,

I've encountered this "page is null" error many times. It's often caused by the JavaScript engine losing its context or a conflict with the Java VM in the Desktop version.

Once this happens, a simple PC restart might not fix it because background processes or corrupted caches often persist. Here is the safest sequence to resolve this:

  1. Kill all processes: Open Task Manager and manually terminate all Memento-related processes. Look for Memento.exe, but more importantly, ensure you kill any javaw.exe or jxbrowser processes. They often act as "zombies" holding onto the error state.

  2. Clear the cache (Experimental/Risky): If the Task Manager doesn't work, you may need to delete certain files within the Memento program folder (under .memento in your user directory). Warning: This is quite risky. Only do this as a last resort, as it can compromise your library data.

The Desktop version's JS engine is much more unstable compared to the Mobile version. A thorough sweep of the processes in Task Manager is usually enough to get things moving again.

Best regards,


2026年5月5日火曜日 1:53:19 UTC+9 ernst...@gmail.com:
Reply all
Reply to author
Forward
0 new messages