D-BUS Session Message Bus does not start on nitrogen6x

After flashing the image to a memory card and booting Boundary Devices i.MX6:

root@b2qt-nitrogen6x:~# systemctl status dbus-session -l
● dbus-session.service - D-BUS Session Message Bus.
Loaded: loaded (/lib/systemd/system/dbus-session.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Thu 2016-09-22 21:00:49 UTC; 7min ago
Process: 385 ExecStart=/usr/bin/dbus-session.init start (code=exited, status=203/EXEC)

Sep 22 21:00:48 b2qt-nitrogen6x systemd[1]: Starting D-BUS Session Message Bus....
Sep 22 21:00:49 b2qt-nitrogen6x systemd[1]: dbus-session.service: Control process exited, code=exited status=203
Sep 22 21:00:49 b2qt-nitrogen6x systemd[1]: Failed to start D-BUS Session Message Bus..
Sep 22 21:00:49 b2qt-nitrogen6x systemd[1]: dbus-session.service: Unit entered failed state.
Sep 22 21:00:49 b2qt-nitrogen6x systemd[1]: dbus-session.service: Failed with result 'exit-code'.