kontact & amarok don't work, akonadi-server problem ?

After upgrade kontact & amarok don’t work. Akonadi-server don’t work too… When I launch
akonadi tray I have this message :


What does packages install in system?

  • dev-db/mysql
  • dev-db/mariadb
  • dev-db/postgresql

mariadb / postgresql & sqlite

for amarok I unmerge media-libs/phonon-gstreamer and install media-libs/phonon-vlc. Now it’s work !

For kontact I search