There is a quite new minor bug about supervisor. After installation when we try to use superisorctl  control panel it gives error as : <class 'socket.error'>, [Errno 2] No such file or directory: file: <string> line: 1   Solving problem is really easy just execute sudo /etc/init.d/supervisord restartand Everythings gonna be all right 🙂 Have a nice working.   Related links https://github.com/Supervisor/supervisor/issues/121