Bootstrap-sass gem Javascript无法在Rails中工作4

Question

当使用bootstrap-sass gem我已正确加载我的css文件时，但是当我尝试加载javascript文件时收到错误。我已经按照从https://github.com/twbs/bootstrap-sass加载javascript的过程，但是当我在localhost上查看我的网页时

我收到错误“找不到文件'bootstrap'”

这是我的application.js文件的样子 - 任何帮助将不胜感激！
Application.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 vendor/assets/javascripts of plugins, if any, 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/sstephenson/sprockets#sprockets-directives) for details
// about supported directives.
//
//= require jquery
//= require jquery_ujs
//= require turbolinks
// Loads all Bootstrap javascripts
//= require bootstrap
//= require_tree .

Answer 1

从 Rails 4 :assets group isn't used anymore，请从 Gemfile 中删除该群组：

  

Rails 4.0从Gemfile中删除了资产组。升级时，您需要从Gemfile中删除该行。您还应该更新您的应用程序文件（在config / application.rb中）：

     

    

Bundler.require（：default，Rails.env）

  

Answer 2

我通过移除gem'bootstrap-sass'，'〜＆gt;来实现它。 3.0.3.0'在gemfile中的资产组中！ YAY

Answer 3

您是否bundle install并确保加载application.js（来自资产管道）。