Gunicorn setup / error for django application

I just started using digitalocean, and wanted to host a Django 1.7 application on a server. I copied over my django project to the server, and installed the few packages I needed to run it. I tested and made sure that I could run the site using the the built in django development server. After doing that however, I went to setup gunicorn as is shown in this tutorial: https://www.digitalocean.com/community/tutorials/how-to-use-the-django-one-click-install-image. After changing the filename and path to match my django project I typed “service gunicorn restart” only to have the shell say:

stop: Unknown job: gunicorn start: Unknown job: gunicorn

I’ve never used gunicorn before and have no idea what is going wrong. I was hoping I could get some help finishing my setup and publishing the site.

Thanks