Rails Composer Not Working - Devise Quickstart Guide

[sono123]

While following the instructions in the Devise Quickstart Guide, the composer is giving me the following error:

The template [https://raw.github.com/RailsApps/rails-composer/master/composer.rb] could not be loaded. Error: No such file or directory @ rb_sysopen - /Users/steveono/Capstone/rails-devise/config/initializers/devise.rb

Here are the contents of the readme:

option Build a starter application?
choose Enter your selection: [rails-devise]
option Get on the mailing list for Rails Composer news?
choose Enter your selection: [mailinglist]
option Web server for development?
choose Enter your selection: [puma]
option Web server for production?
choose Enter your selection: [puma]
option Database used in development?
choose Enter your selection: [postgresql]
option Template engine?
choose Enter your selection: [erb]
option Test framework?
choose Enter your selection: [rspec]
option Continuous testing?
choose Enter your selection: [none]
option Front-end framework?
choose Enter your selection: [bootstrap3]
option Add support for sending email?
choose Enter your selection: [gmail]
option Authentication?
choose Enter your selection: [devise]
option Devise modules?
choose Enter your selection: [default]
option OmniAuth provider?
choose Enter your selection: []
option Authorization?
choose Enter your selection: [false]
option Use a form builder gem?
choose Enter your selection: [none]
option Add pages?
choose Enter your selection: [about+users]
option Set a locale?
choose Enter your selection: [none]
option Install page-view analytics?
choose Enter your selection: [none]
option Add a deployment mechanism?
choose Enter your selection: [heroku]
option Set a robots.txt file to ban spiders?
choose Enter your selection: []
option Create a GitHub repository? (y/n)
choose Enter your selection: []
option Add gem and file for environment variables?
choose Enter your selection: []
option Reduce assets logger noise during development?
choose Enter your selection: [true]
option Improve error reporting with 'better_errors' during development?
choose Enter your selection: [true]
option Use 'pry' as console replacement during development and test?
choose Enter your selection: [false]
option Use or create a project-specific rvm gemset?
choose Enter your selection: []

Any thoughts or feedback would be greatly appreciated.