Hello Michael. Initial mail might have landed in moderation queue or something like that, at least it didn´t get through yet, thus CC´ing to you as well. Michael Schwartzkopff - 02.04.18, 07:44: > I did an upgrade of ubuntu 14.04 to 16.04 and now my kwallet is empty. > > > The version of kwalletmanager on the old system was 4:4.13.2. > > The version on the new system is 4:15.12.3-0ubuntu1. > > > The new kwalletmanager just says: "Error -9". > > Now I installed an other machine with the old ubuntu 14.04 to open the > kwallet there and export it to XML. But opening the kdewallet.kwl there > also fails with "Error 42". This should work. Which one did you use? You need to use the old one in ~/.kde/share/apps/ kwalletd, not the new one in ~/.config/kwalletd. > Any idea how I can retrieve my passwords? It really would be urgent. You can retry the migration: Set alreadyMigrated to false again: %> cat .config/kwalletrc [Migration] alreadyMigrated=true Restart kwalletd. One way is to log out and log in. There is another way which works during a session, but I am not sure how it worked. Maybe you can just quit kwalletd5 process and start it again. Also see: https://wiki.gentoo.org/wiki/KDE/ Troubleshooting#Recover_KWallet_passwords_after_failed_migration Thanks, -- Martin