title: File to import not found or unreadable: bootstrap-sprockets
body: <p>I am trying to install bootstrap into my application and am having all kinds of problems. I have pasted my gemfile, application.js and error codes. I am not sure what I am doing wrong here and any help would be greatly appreciated. </p>
  
  <p>styles.css.scss</p>
  
  <pre><code>// "bootstrap-sprockets" must be imported before "bootstrap" and "bootstrap/variables"
  @import "bootstrap-sprockets";
  @import "bootstrap";
  </code></pre>
  
  <p>gem  file     </p>
  
  <pre><code>source 'http://rubygems.org'
  # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
  gem 'rails', '4.1.8'
  # Use sqlite3 as the database for Active Record
  group :development do
    gem 'sqlite3'
    gem 'capistrano'
  end
  
  group :production do
    gem 'pg'
    gem 'mysql2'
    gem 'activerecord-mysql-adapter'
  end
  
  # Use SCSS for stylesheets
  group :assets do
    gem 'coffee-rails'
    gem 'bootstrap-sass', '~&gt; 3.3.3'
    gem 'sass-rails', '&gt;= 3.2'
  
  end
  # Use Uglifier as compressor for JavaScript assets
  gem 'uglifier', '&gt;= 1.3.0'
  # Use CoffeeScript for .js.coffee assets and views
  
  
  
  # See https://github.com/sstephenson/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', '~&gt; 2.0'
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', '~&gt; 0.4.0',          group: :doc
  
  # Use ActiveModel has_secure_password
  # gem 'bcrypt', '~&gt; 3.1.7'
  
  # Use unicorn as the app server
  # gem 'unicorn'
  
  # Use Capistrano for deployment
  # gem 'capistrano-rails', group: :development
  
  # Use debugger
  # gem 'debugger', group: [:development, :test]
  
  # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
  gem 'tzinfo-data', platforms: [:mingw, :mswin]
  </code></pre>
  
  <p>application.js</p>
  
  <pre><code>// 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
  //= require_tree .
  //= require bootstrap-sprockets
  </code></pre>
  
  <p>this is my error</p>
  
  <pre><code>WARN: tilt autoloading 'sass' in a non thread-safe way; explicit require 'sass' suggested.
  Completed 500 Internal Server Error in 722ms
  
  ActionView::Template::Error (File to import not found or unreadable: bootstrap-sprockets.
  Load paths:
    C:/Sites/jeepjig/app/assets/images
    C:/Sites/jeepjig/app/assets/javascripts
    C:/Sites/jeepjig/app/assets/stylesheets
    C:/Sites/jeepjig/vendor/assets/javascripts
    C:/Sites/jeepjig/vendor/assets/stylesheets
    C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/turbolinks-2.5.2/lib/assets/javascripts
    C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/jquery-rails-3.1.2/vendor/assets/javascripts
    (in C:/Sites/jeepjig/app/assets/stylesheets/styles.css.scss:2)):
      3: &lt;head&gt;
      4:  &lt;%= tag :meta, name: "viewport", content: "width=device-width, initial-scale=1.0" %&gt;
      5:   &lt;title&gt;JeepJig&lt;/title&gt;
      6:   &lt;%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track' =&gt; true %&gt;
      7:   &lt;%= javascript_include_tag 'application', 'data-turbolinks-track' =&gt; true %&gt;
      8:   &lt;%= csrf_meta_tags %&gt;
      9:
    app/assets/stylesheets/styles.css.scss:2
    app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb__1034748832_48995988'
  
  
    Rendered C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/actionpack-4.1.8/lib/action_dispatch/middleware/templ
  ates/rescues/_trace.html.erb (3.0ms)
    Rendered C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/actionpack-4.1.8/lib/action_dispatch/middleware/templ
  ates/rescues/_request_and_response.html.erb (2.0ms)
    Rendered C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/actionpack-4.1.8/lib/action_dispatch/middleware/templ
  ates/rescues/template_error.html.erb within rescues/layout (53.0ms)
  </code></pre>