Latest version install problem latest version

I was trying to install in ubuntu 16.04 but can’t, what is my fault?

    "Updating DocTypes for frappe        : [======================================= ]",
    "Updating DocTypes for frappe        : [======================================= ]",
    "Updating DocTypes for frappe        : [======================================= ]",
    "Updating DocTypes for frappe        : [======================================= ]",
    "Updating DocTypes for frappe        : [======================================= ]",
    "Updating DocTypes for frappe        : [========================================]"
]

}

PLAY RECAP **********************************************************************************************************************************
localhost : ok=79 changed=46 unreachable=0 failed=1 skipped=52 rescued=0 ignored=0

Traceback (most recent call last):
File “install.py”, line 413, in
install_bench(args)
File “install.py”, line 135, in install_bench
run_playbook(‘site.yml’, sudo=True, extra_vars=extra_vars)
File “install.py”, line 327, in run_playbook
success = subprocess.check_call(args, cwd=os.path.join(cwd, ‘playbooks’))
File “/usr/lib/python2.7/subprocess.py”, line 541, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command ‘[‘ansible-playbook’, ‘-c’, ‘local’, ‘site.yml’, ‘-vvvv’, ‘-e’, ‘@/tmp/extra_vars.json’, ‘–become’, ‘–become-user=frappe’]’ returned non-zero exit status 2

what can I do?

My install procedure command

apt-get update

apt-get -y upgrade

apt-get install -y python-minimal build-essential python-setuptools

reboot

wget https://raw.githubusercontent.com/frappe/bench/master/playbooks/install.py
sudo python install.py --production

lot of time I can install by this now it is not work

Bumping it up…
Same here, exact error, fresh install on Ubuntu 18.4
What is it good for when you cannot install it?

    "Updating DocTypes for frappe        : [========================================]"
]

}

PLAY RECAP ********************************************************************************************************************************
localhost : ok=79 changed=46 unreachable=0 failed=1 skipped=52 rescued=0 ignored=0

Traceback (most recent call last):
File “install.py”, line 413, in
install_bench(args)
File “install.py”, line 135, in install_bench
run_playbook(‘site.yml’, sudo=True, extra_vars=extra_vars)
File “install.py”, line 327, in run_playbook
success = subprocess.check_call(args, cwd=os.path.join(cwd, ‘playbooks’))
File “/usr/lib/python2.7/subprocess.py”, line 190, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command ‘[‘ansible-playbook’, ‘-c’, ‘local’, ‘site.yml’, ‘-vvvv’, ‘-e’, ‘@/tmp/extra_vars.json’, ‘–become’, ‘–become-user=frappe’]’ returned non-zero exit status 2