Documentation appears to be out of date.

[braindeaf]

Just upgrading from Capistrano 2 to 3. I couldn't get unicorn tasks to trigger and the unicorn service to restart. I noticed a few things in the documentation that didn't appear quite right.

https://github.com/capistrano-plugins/capistrano-unicorn-nginx/wiki/Single-server-setup
https://github.com/capistrano-plugins/capistrano-unicorn-nginx/wiki/Multiple-server-setup

require 'capistrano/unicorn_nginx' (should be require 'capistrano/nginx_unicorn')

https://github.com/capistrano-plugins/capistrano-unicorn-nginx/wiki/Configuration

:unicorn_service (should be :unicorn_service_name)

I hope this helps.

[tomprats]

It sounds like you might be using capistrano-nginx-unicorn instead of capistrano-unicorn-nginx