Let me confirm that I had a similar / identical problem on my Windows-7 machine after Mnemosyne 2.4 installation.
Furthermore, I tried to investigate (via xampp/mercurymail/sqlite3.exe default.db, that seemed to be reasonable. I also copied the default.db from another version, which did not help. -- You received this message because you are subscribed to the Google Groups "mnemosyne-proj-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/mnemosyne-proj-users/d36fefc5-ffff-4bd1-9de2-f77b8d526447%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
