supervisor-service not starting

[syst0m]

Using Ubuntu:

# lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.1 LTS
Release:	16.04
Codename:	xenial

On state.apply:

---------
          ID: supervisor-service
    Function: service.running
        Name: supervisor
      Result: False
     Comment: The named service supervisor is not available
     Started: 03:27:01.323226
    Duration: 31.832 ms
     Changes:   

When starting manually:

# /etc/init.d/supervisor start
/etc/init.d/supervisor: line 17: /etc/rc.d/init.d/functions: No such file or directory
Starting supervisord: