Ruby on Rails - cannot run the following command : rails generate rspec:install - ruby-on-rails

Question

I'm studying Rails tutorial Chapter 3.
I cannot execute the following command. If you have an idea to solve this problem, please tell me.
Thanks.
exec command
bundle exec rails generate rspec:install
Errors
/Users/mofuty/rails_projects/sample_app/config/application.rb:5:in `require': cannot load such file -- active_job/railtie (LoadError)
from /Users/mofuty/rails_projects/sample_app/config/application.rb:5:in `<top (required)>'
from /Users/mofuty/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/railties-4.0.5/lib/rails/commands.rb:43:in `require'
from /Users/mofuty/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/railties-4.0.5/lib/rails/commands.rb:43:in `<top (required)>'
from bin/rails:8:in `require'
from bin/rails:8:in `<main>'
Gemfile
source 'https://rubygems.org'
ruby '2.1.2'
#ruby-gemset=railstutorial_rails_4_0
gem 'rails', '4.0.5'
group :development, :test do
gem 'sqlite3', '1.3.8'
gem 'rspec-rails', '2.13.1'
end
group :test do
gem 'selenium-webdriver', '2.35.1'
gem 'capybara', '2.1.0'
end
gem 'sass-rails', '4.0.5'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.0.1'
gem 'jquery-rails', '3.0.4'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'
group :doc do
gem 'sdoc', '0.3.20', require: false
end
group :production do
gem 'pg', '0.15.1'
gem 'rails_12factor', '0.0.2'
end
The following is apprication.rb. If you needs more details, please ask me.
config/application.rb
require File.expand_path('../boot', __FILE__)
# Pick the frameworks you want: require "active_model/railtie" require "active_job/railtie" require "active_record/railtie" require "action_controller/railtie" require "action_mailer/railtie" require "action_view/railtie" require "sprockets/railtie"
# require "rails/test_unit/railtie"
# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production. Bundler.require(*Rails.groups)
module SampleApp class Application < Rails::Application
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.
# Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
# Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
# config.time_zone = 'Central Time (US & Canada)'
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
# config.i18n.default_locale = :de
# Do not swallow errors in after_commit/after_rollback callbacks.
config.active_record.raise_in_transactional_callbacks = true end end

Answer 1

Try bundle exec rails generate rspec:install
bundle exec is a Bundler command to execute a script in the context of the current bundle (the one from your directory's Gemfile)

Answer 2

It sounds as though your test suite is invoking some code with a dependency on the new ActiveJob framework that is part of Rails 4.
The error suggests that you do not have the railtie included in your config/application.rb file. If you open it, you'll likely find it is commented out, look for a line like this: # require "active_job/railtie"
If so, uncomment it. If that line is not included in the file, add require "active_job/railtie" on a new line after this require "active_model/railtie".
This will ensure that the active job railtie is loaded on Rails initialization.

Answer 3

Thanks for your advice. The problem is I executed rails new with rails 4.2.x. So, I rebuild the project with 4.0.5. Then I could executed bundle exec rails generate rspec:install. I appreciate you.