So I’m trying to setup certbot on a Ubuntu 14.04, I did all the steps above but I can’t get it to work.

Step 1: sudo add-apt-repository ppa:certbot/certbot
Step 2: sudo apt-get update
Step 3: sudo apt-get install python-certbot-nginx

Error:
root@server:/etc/nginx/sites-enabled# sudo apt-get install python-certbot-nginx
Reading package lists… Done
Building dependency tree
Reading state information… Done
E: Unable to locate package python-certbot-nginx