Comment # 7 on bug 1226526 from Christophe Marin

(In reply to Peter Krause from comment #6)

> > Thanks a lot for your support! Does this happen when running updates via
> > both commandline using zypper and Discover?
> > So now, uninstall libPlasma6 and install using zypper?
> So, obviously, I am using multiple repositories providing KDE Frameworks
> (hell knows where they came from):
> 
> KDE:Extra
> KDE:Frameworks
> KDE:Frameworks5
> home:Vogtinator:l-d-git
> 
> How do I know, which of them is the most appropriate one?

This is explained on the wiki page:
https://en.opensuse.org/SDB:KDE_repositories

and enabling them or not depends on what you're looking for.

You can safely drop home:Vogtinator:l-d-git, latte-dock isn't compatible with
plasma 6.