I’ve just faced the same problem, using the official Raspian image from the Pi foundation (“2016-02-09 full desktop image”). Using the yunohost installation script fails with the installation of metronome.
Here is the output in yunohost-installation.log:
Paramétrage de metronome (3.6-6) ...
Ajout de l'utilisateur metronome au groupe ssl-cert
Job for metronome.service failed. See 'systemctl status metronome.service' and 'journalctl -xn' for details.
invoke-rc.d: initscript metronome, action "start" failed.
dpkg: erreur de traitement du paquet metronome (--configure) :
le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
and here is the output of systemctl:
$ sudo systemctl status metronome.service
● metronome.service - LSB: Metronome XMPP Server
Loaded: loaded (/etc/init.d/metronome)
Active: failed (Result: exit-code) since mer. 2016-02-17 20:34:21 UTC; 1min 34s ago
Process: 1918 ExecStart=/etc/init.d/metronome start (code=exited, status=1/FAILURE)
févr. 17 20:34:21 raspberrypi metronome[1918]: Starting Metronome XMPP Server: metronomeIllegal instruction
févr. 17 20:34:21 raspberrypi metronome[1918]: failed!
févr. 17 20:34:21 raspberrypi systemd[1]: metronome.service: control process exited, code=exited status=1
févr. 17 20:34:21 raspberrypi systemd[1]: Failed to start LSB: Metronome XMPP Server.
févr. 17 20:34:21 raspberrypi systemd[1]: Unit metronome.service entered failed state.
it’s not clear from that what is the problem with metronome installation.