Rspec breaks if Capybara exists and rails is not required.

1. error

capybara-2.2.1/lib/capybara/rails.rb:15:in `<top (required)>': undefined method `join' for nil:NilClass (NoMethodError)

spec_helper

require 'active_support'
require 'active_support/dependencies'
require 'active_record'
require 'database_cleaner'
require 'factory_girl_rails'
require 'pg_search'
require 'humanizer'
require 'paperclip'
require 'capybara/rspec'
require 'capybara/rails'
require 'paperclip/matchers'
require 'action_view'
require 'action_controller'
require 'yaml'
require 'rspec/rails'

only added require 'capybara/rspec' and require 'capybara/rails' in an attempt to fix this, but that's not working.