title: Ruby on Rails Install JQuery
body: <p>I create a new project, i am just follow the tutorial step by step to install jquery in my project, but it doesn't work.</p>
  
  <p>I add this two line to my view.<br/>
  <li>&lt;% stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %><br/>
  <li>&lt;% javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %></li></p>
  
  <hr/>
  
  <p>Project\Gemfile</p>
  
  <pre>
      source 'https://rubygems.org'
  
      git_source(:github) do |repo_name|
        repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
        "https://github.com/#{repo_name}.git"
      end
  
  
      # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
      gem 'rails', '~> 5.1.4'
      # Use sqlite3 as the database for Active Record
      gem 'sqlite3'
      # Use Puma as the app server
      gem 'puma', '~> 3.7'
      # Use SCSS for stylesheets
      gem 'sass-rails', '~> 5.0'
      # Use Uglifier as compressor for JavaScript assets
      gem 'uglifier', '>= 1.3.0'
      # See https://github.com/rails/execjs#readme for more supported runtimes
      # gem 'therubyracer', platforms: :ruby
  
      # Use CoffeeScript for .coffee assets and views
      gem 'coffee-rails', '~> 4.2'
      # Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
      gem 'turbolinks', '~> 5'
      # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
      gem 'jbuilder', '~> 2.5'
      # Use Redis adapter to run Action Cable in production
      # gem 'redis', '~> 3.0'
      # Use ActiveModel has_secure_password
      # gem 'bcrypt', '~> 3.1.7'
  
      # Use Capistrano for deployment
      # gem 'capistrano-rails', group: :development
  
      group :development, :test do
        # Call 'byebug' anywhere in the code to stop execution and get a debugger console
        gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
        # Adds support for Capybara system testing and selenium driver
        gem 'capybara', '~> 2.13'
        gem 'selenium-webdriver'
      end
  
      group :development do
        # Access an IRB console on exception pages or by using  anywhere in the code.
        gem 'web-console', '>= 3.3.0'
      end
  
      # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
      gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
  
      gem 'jquery-rails'
      gem 'mysql2'
  
  </pre>
  
  <p><br/><hr/></p>
  
  <p>Project\app\assets\javascripts\application.js</p>
  
  <pre>
      // This is a manifest file that'll be compiled into application.js, which will include all the files
      // listed below.
      //
      // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, or any plugin's
      // vendor/assets/javascripts directory can be referenced here using a relative path.
      //
      // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
      // compiled file. JavaScript code in this file should be added after the last require_* statement.
      //
      // Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details
      // about supported directives.
      //
      //= require rails-ujs
      //= require turbolinks
      //= require jquery
      //= require jquery_ujs
      //= require_tree .
  
  </pre>