Installation traceback error ubuntu 14.04

Traceback (most recent call last):
File “”, line 386, in
File, line 109, in install_bench
run_playbook(‘develop/install.yml’, sudo=True, extra_vars=extra_vars)
File “”, line 324, in run_playbook
success = subprocess.check_call(args, cwd=os.path.join(cwd, ‘playbooks’))
File “/usr/lib/python2.7/”, line 540, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command ‘[‘ansible-playbook’, ‘-c’, ‘local’, ‘develop/install.yml’, ‘-e’, ‘@/tmp/extra_vars.json’, ‘–become’, ‘–become-user=mushirahmed’]’ returned non-zero exit status 2

Can you mention the steps/commands you executed for installation?

I have used following commands for installatioin.
python --develop --user mushirahmed