Erpnext installation problem in ubnutu 14.04

I tried to install Erpnext through easy installation as per the instructions given in the site (GitHub - frappe/bench: CLI to manage Multi-tenant deployments for Frappe apps) i am getting this error.

It seems your install has mariadb password problem?

This reference may help GitHub - jwrober/erpnext_admin_guide: ERPNext Administrators Guide

Alternatively you can download

hope this helps

Thanks for your guidens. I have installed ERPnext successfully.