ERPNext Fresh Installation Error debian 9

Passwords saved at ~/passwords.txt
 [WARNING]: No inventory was parsed, only implicit localhost is available
 [WARNING]: provided hosts list is empty, only localhost is available. Note
that the implicit localhost does not match 'all'
 [WARNING]: Consider using the get_url or uri module rather than running
'curl'.  If you need to use command because get_url or uri is insufficient you
can add 'warn: false' to this command task or set 'command_warnings=False' in
ansible.cfg to get rid of this message.
Traceback (most recent call last):
  File "install.py", line 437, in <module>
    install_bench(args)
  File "install.py", line 241, in install_bench
    run_playbook('site.yml', sudo=True, extra_vars=extra_vars)
  File "install.py", line 362, in run_playbook
    success = subprocess.check_call(args, cwd=os.path.join(cwd, 'playbooks'), st                                                                                                                     dout=log_stream, stderr=sys.stderr)
  File "/usr/lib/python3.5/subprocess.py", line 271, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['ansible-playbook', '-c', 'local', 'sit                                                                                                                     e.yml', '-vvvv', '-e', '@/tmp/extra_vars.json', '--become', '--become-user=frapp                                                                                                                     e']' returned non-zero exit status 2
HEY! USE SCREEN root@instance-1:~#

Pushing this thread for visibility. I’m having the same problem, after trying a production install

What does your /etc/hosts file look like?

cat /etc/hosts