ブートストラップがレール上で動作しない4

Question

私のアプリに問題があります。レールアプリにブートストラップ効果が見えません。私はバンドルをインストールしましたが、違いは見られません。これは初めてのブートストラップです。

source 'https://rubygems.org' 


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails' 
gem 'rails', '4.2.5.1' 
gem 'bootstrap-sass', '~> 3.3.6' 
gem 'sass-rails', '~> 5.0' 
# Use Uglifier as compressor for JavaScript assets 
gem 'uglifier', '>= 1.3.0' 
# Use CoffeeScript for .coffee assets and views 
gem 'coffee-rails', '~> 4.1.0' 
# See https://github.com/rails/execjs#readme for more supported runtimes 
# gem 'therubyracer', platforms: :ruby 

# Use jquery as the JavaScript library 
gem 'jquery-rails' 
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks 
gem 'turbolinks' 
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder 
gem 'jbuilder', '~> 2.0' 
# bundle exec rake doc:rails generates the API under doc/api. 
gem 'sdoc', '~> 0.4.0', group: :doc 

# Use ActiveModel has_secure_password 
# gem 'bcrypt', '~> 3.1.7' 

# Use Unicorn as the app server 
# gem 'unicorn' 

# Use Capistrano for deployment 
# gem 'capistrano-rails', group: :development 

group :development, :test do 
    gem 'sqlite3' 
    # Call 'byebug' anywhere in the code to stop execution and get a debugger console 
    gem 'byebug' 
end 

group :development do 
    # Access an IRB console on exception pages or by using <%= console %> in views 
    gem 'web-console', '~> 2.0' 

    # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring 
    gem 'spring' 
end 

group :production do 
    gem 'pg' 
    gem 'rails_12factor' 

そして、私のアプリケーションのjs：

// 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, vendor/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. 
// 
// Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details 
// about supported directives. 
// 
//= require jquery 
//= require jquery_ujs 
//= require bootstrap-sprockets 
//= require turbolinks 
//= require_tree . 

そして、私のアプリケーションのCSS：あなたはあなたのアプリケーションにブートストラップを追加する必要が

/* This is a manifest file that'll be compiled into application.css, which will include all the files 
* listed below. 
* 
* Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets, 
* or any plugin's vendor/assets/stylesheets directory can be referenced here using a relative path. 
* 
* You're free to add application-wide styles to this file and they'll appear at the bottom of the 
* compiled file so the styles you add here take precedence over styles defined in any styles 
* defined in the other CSS/SCSS files in this directory. It is generally better to create a new 
* file per style scope. 
* 
*= require_tree . 
*= require_self 

*/ 

Answer 1

ここ

は私の宝石のファイルです.scssも。 https://github.com/twbs/bootstrap-sass#installation

@import "bootstrap-sprockets"; 

@import "bootstrap"; 

注：

だけdocumentaionに従ってください、私はそれを自分のアプリケーションのCSSを追加しましたapplication.scss