Easy install script failing

Install ERPNext on 18.04.05 VPS Server TTY with easy script :
Getting the following error :

[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]: Updating cache and auto-installing missing dependency: python3-apt
Traceback (most recent call last):
File “install.py”, line 498, in
File “install.py”, line 279, in install_bench
run_playbook(‘site.yml’, sudo=True, extra_vars=extra_vars)
File “install.py”, line 414, in run_playbook
success = subprocess.check_call(args, cwd=playbooks_folder, stdout=log_stream, stderr=sys.stderr)
File “/usr/lib/python3.6/subprocess.py”, line 311, 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=erpnxtadmin’]’ returned non-zero exit status 2

before installation run following command:

apt install python3-minimal build-essential python3-setuptools

Reading package lists… Done
Building dependency tree
Reading state information… Done
build-essential is already the newest version (12.4ubuntu1).
python3-setuptools is already the newest version (39.0.1-2).
python3-minimal is already the newest version (3.6.7-1~18.04).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.