Unable to Install Discourse for development

[ExpertTeam_India]

Yes I am trying to install from :

Install Discourse on Ubuntu or Debian for Development

This guide covers installation instructions in a development environment. For a production guide see: Install Discourse in production with the official, supported instructions So you want to set up Discourse on Ubuntu or Debian to hack on and develop with? We’ll assume that you work locally and don’t have Ruby/Rails/Postgres/Redis installed on your Ubuntu or Debian system. Let’s begin! Requirements We suggest having at least 4 GB RAM and 2 CPU cores. Current compatibility: …