I've set up x-forwarding on an Ubuntu 16.04.3 server and although the forwarding works, every time I start a GUI application it reports the following error in the terminal.
(<app-name>:<pid>) LIBDBUSMENU-GLIB-WARNING **: Unable to get session bus: Failed to execute child process "dbus-launch" (No such file or directory)
This is obviously not critical, but it isn't working as it should.
How can I repair this?
Edit I'm mostly trying to start Firefox.