CASA NRAO VLA pipeline

Hi everyone,

Probably this issue will sound a bit uncommon since the CASA software is only used by mostly astrophysicists and astronomers. However I encounter this problem and I don’t know how to deal with it. To summarize, CASA is a python environment plus some python functions to manage and handle radio-interferometric datasets. I have downloaded the VLA pipeline version. I have used this software (same version) in other OS such as Ubuntu, CentOS, Scientific Linux but I never encountered the error that I am getting in Manjaro. When I am trying to use a function named plotms - which uses matplotlib behind - I get: “ERROR: Dbus-daemon stopped, please restart CASA.”. And if you restart CASA, nothing happens. Should I consider anything when installing dbus-daemon in Manjaro i3?

Additional information: I have created an ubuntu container with CASA inside. I have run the container, and plotms function works. So there might be something missing in manjaro that is in ubuntu I guess…


Check which dbus packages are installed in Ubuntu and in Manjaro. In Manjaro you can get this info with pacman -Q | grep dbus. Also check if dbus is running with systemctl status dbus.

EDIT: you can also check for dbus errors with the above systemctl command or with journalctl -xe -p3


Thanks for your response.

I figure out that when I use CASA and some other apps, I get this message in the journal:

ene 26 21:27:32 dbus-daemon[685]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.home1.service': Unit dbus-org.freedesktop.home1.service not found

However, I have no idea of how to fix this.

That message is probably related with systemd-homed and has nothing to do with the OP (source).