2018-04-24 19:52:47,161:INFO:Launching X server and X session.
2018-04-24 19:52:47,169:INFO:Starting Xvfb on display :20
xdpyinfo:  unable to open display ":20".
2018-04-24 19:52:47,683:INFO:X server is active.
Traceback (most recent call last):
  File "/opt/google/chrome-remote-desktop/chrome-remote-desktop", line 1772, in <module>
    sys.exit(main())
  File "/opt/google/chrome-remote-desktop/chrome-remote-desktop", line 1679, in main
    desktop.launch_session(options.args)
  File "/opt/google/chrome-remote-desktop/chrome-remote-desktop", line 723, in launch_session
    self._launch_x_server(x_args)
  File "/opt/google/chrome-remote-desktop/chrome-remote-desktop", line 640, in _launch_x_server
    self._launch_xvfb(display, x_auth_file, extra_x_args)
  File "/opt/google/chrome-remote-desktop/chrome-remote-desktop", line 564, in _launch_xvfb
    stdout=devnull, stderr=devnull)
  File "/usr/lib/python2.7/subprocess.py", line 168, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/usr/lib/python2.7/subprocess.py", line 390, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1025, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
2018-04-24 19:52:47,687:INFO:Cleanup.
2018-04-24 19:52:47,687:INFO:Terminating X server
[0424/195247.704869:WARNING:remoting_user_session.cc(464)] Child exited with status 1