Probleme lors de installation de peertube

Bonjours
j’essaye d’installer peertube sur mon serveur
En excecutant cette commante : journalctl -feu peertube sur le terminal
cela renvoie :

peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:23 etienne1 systemd[22593]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 1.
Sep 05 07:16:23 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:23 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:23 etienne1 systemd[22594]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:23 etienne1 systemd[22594]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 2.
Sep 05 07:16:23 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:23 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:23 etienne1 systemd[22595]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:23 etienne1 systemd[22595]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:23 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 3.
Sep 05 07:16:24 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:24 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:24 etienne1 systemd[22596]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:24 etienne1 systemd[22596]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 4.
Sep 05 07:16:24 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:24 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:24 etienne1 systemd[22597]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:24 etienne1 systemd[22597]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 5.
Sep 05 07:16:24 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Start request repeated too quickly.
Sep 05 07:16:24 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:24 etienne1 systemd[1]: Failed to start PeerTube daemon.
Sep 05 07:16:42 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:42 etienne1 systemd[22661]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:42 etienne1 systemd[22661]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:42 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:42 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:42 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:42 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 1.
Sep 05 07:16:42 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:42 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:42 etienne1 systemd[22662]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:42 etienne1 systemd[22662]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:42 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:42 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 2.
Sep 05 07:16:43 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:43 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:43 etienne1 systemd[22663]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:43 etienne1 systemd[22663]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 3.
Sep 05 07:16:43 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:43 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:43 etienne1 systemd[22664]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:43 etienne1 systemd[22664]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 4.
Sep 05 07:16:43 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:43 etienne1 systemd[1]: Started PeerTube daemon.
Sep 05 07:16:43 etienne1 systemd[22665]: peertube.service: Failed to execute command: No such file or directory
Sep 05 07:16:43 etienne1 systemd[22665]: peertube.service: Failed at step EXEC spawning /usr/bin/node: No such file or directory
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Main process exited, code=exited, status=203/EXEC
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Service RestartSec=100ms expired, scheduling restart.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Scheduled restart job, restart counter is at 5.
Sep 05 07:16:43 etienne1 systemd[1]: Stopped PeerTube daemon.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Start request repeated too quickly.
Sep 05 07:16:43 etienne1 systemd[1]: peertube.service: Failed with result 'exit-code'.
Sep 05 07:16:43 etienne1 systemd[1]: Failed to start PeerTube daemon.

Pourquoi ?

Nodejs n’a pas l’air d’être installé. À tout le moins, pas au chemin /usr/bin/node

Ne pas oublier d’installer les dépendances : PeerTube documentation