KMail did not start cause of something in ~/.local/share/kmail2

Greetings.

I dug quite a bit into KMail and Akonadi internals, but I did not know 
about this directory before.

Since today morning KMail 26.04.3 aka 6.7.3 did not start anymore on one 
of my user accounts while it started just fine on a different user 
account. This is on an up-to-date Devuan Ceres – which is based on Debian 
Sid – with self-compiled kernel 7.2.


After trying a lot of different things, I finally removed the directory

~/.local/share/kmail2

and its contents.

I contained a ton of stuff including:

- ai-database/roompendingtypedinfo/pendingtypedinfo.sqlite

- libreoffice/4/user/autocorr/acor_de-DE.dat

And a lot of other stuff.


Not being able to use KMail on this user account for almost a day, I took 
the plunge and just removed the directory.

Then KMail started without issues. Command line output just:

org.kde.pim.pimcommonactivities: Plasma activities is not running:  1

Which is incorrect, cause I am using Plasma activities. And I have

/usr/lib/x86_64-linux-gnu/libexec/kactivitymanagerd

in process list.


Before when it did not start it was:

org.kde.pim.pimcommonactivities: Plasma activities is not running:  1
kf.sonnet.core: Unable to handle language from dictionary "ko_KR" "ko_KR"
kf.sonnet.core: Unable to handle language from dictionary "gug" "C"
kf.sonnet.core: Unable to handle language from dictionary "kmr_Latn" "C"
kf.coreaddons: "Could not load plugin from /usr/lib/x86_64-linux-gnu/qt6/
plugins/pim6/kmail/plugineditor/kmail_autogenerateanswerseditorplugin.so: 
Die Bibliothek /usr/lib/x86_64-linux-gnu/qt6/plugins/pim6/kmail/
plugineditor/kmail_autogenerateanswerseditorplugin.so kann nicht geladen 
werden: /usr/lib/x86_64-linux-gnu/qt6/plugins/pim6/kmail/plugineditor/
kmail_autogenerateanswerseditorplugin.so: undefined symbol: 
_ZN20TextAutoGenerateText28TextAutoGenerateMessageUtils17convertTextToHtmlERK7QStringRK10QByteArrayS3_Rii"

I know it would have been beneficial to just move the directory to a 
different place and then try which file was causing the issue, but I was 
just feed up with it and so I removed it.

The symbol not found error did not terminate kmail. The process was still 
lingering around. Waiting in process state S.


Since there was some undefined symbol thing going on with an undefined 
symbol in a file from kdepim-addons package, I am going to post this on
debian-kde mailing list as well. Since KDE and Debian are two different 
projects I'd rather not cross-post.

Best,
-- 
Martin