Question

我试图在阅读教程的Rails应用程序中添加bootstrap，我收到了以下错误。请解释发生了什么，请编辑我的代码以显示如何修复。你会提到的Rails上的任何资源都会越来越好，我们将不胜感激。附：我刚开始。谢谢你的阅读。：D

：

页面：http // localhost：3000 / posts

错误：

帖子中的Sass :: SyntaxError #index

导入未找到或不可读的文件：bootstrap。加载路径：
  / Users / mac / Documents / Projects / Web Development / Ruby On Rails / Jump Start   Rails / training / app / assets / config / Users / mac / Documents / Projects / Web   开发/ Ruby On Rails / Jump Start Rails / training / app / assets / images   / Users / mac / Documents / Projects / Web Development / Ruby On Rails / Jump Start   轨道/培训/应用/资产/ JavaScript的
  / Users / mac / Documents / Projects / Web Development / Ruby On Rails / Jump Start   轨道/培训/应用/资产/样式
  / Users / mac / Documents / Projects / Web Development / Ruby On Rails / Jump Start   轨道/培训/供应商/资产/ JavaScript的
  / Users / mac / Documents / Projects / Web Development / Ruby On Rails / Jump Start   轨道/培训/供应商/资产/样式
  /Users/mac/.rvm/gems/ruby-2.3.0/gems/jquery-rails-4.2.1/vendor/assets/javascripts   /Users/mac/.rvm/gems/ruby-2.3.0/gems/coffee-rails-4.2.1/lib/assets/javascripts   /Users/mac/.rvm/gems/ruby-2.3.0/gems/actioncable-5.0.0.1/lib/assets/compiled   /Users/mac/.rvm/gems/ruby-2.3.0/gems/turbolinks-source-5.0.0/lib/assets/javascripts

Extracted source (around line #5):


// @import "bootstrap-responsive";

@import "bootstrap";
@import "bootstrap-responsive";

// body {

Rails.root：/ Users / mac / Documents / Projects / Web Development / Ruby On   Rails / Jump Start Rails / training

应用程序跟踪|框架跟踪|完整追踪   应用程序/资产/样式表/ custom.css.scss：5   应用程序/视图/布局/ application.html.erb：7：在   `_app_views_layouts_application_html_erb___3077022213198936014_70226475759060'   请求

参数：

无

切换会话转储切换env转储响应

接头：

无

Git Repo of files：https://github.com/ScarletMcLearn/training

“application.html.erb”文件的代码（如果需要）：

<!DOCTYPE html>
<html>
  <head>
    <title>Training</title>
    <%= csrf_meta_tags %>

    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
    <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
  </head>

  <body>
    <%= yield %>
  </body>
</html>

application.js文件的代码（如果需要）：

// 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. 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 jquery

// = require bootstrap-sprockets

//= require jquery_ujs
//= require turbolinks
//= require_tree .


//= require bootstrap

Gemfile的内容：

source 'https://rubygems.org'


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.0.0', '>= 5.0.0.1'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use Puma as the app server
gem 'puma', '~> 3.0'
# Use SCSS for stylesheets
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', '~> 4.2'
# 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 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'
gem 'bootstrap-sass'


# 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', platform: :mri
end

group :development do
  # Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
  gem 'web-console'
  gem 'listen', '~> 3.0.5'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

我的“application.css”文件：

/*
 * 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 other CSS/SCSS
 * files in this directory. Styles in this file should be added after the last require_* statement.
 * It is generally better to create a new file per style scope.
 *
 *= require_tree .
 *= require_self
 */

我的“custom.css.scss”文件：

// @import "bootstrap";

// @import "bootstrap-responsive";

//=reqire_self

@import "bootstrap";
@import "bootstrap-responsive";

// body {
//     padding-top: 60px;
//     padding-bottom: 40px
// }
// .sidebar-nav {
//     padding: 9px 0;
// }


body {
    padding-top: 60px;
    padding-bottom: 40px;
}
.sidebar-nav {
    padding: 9px 0;
}

我的'application.js'文件：

// 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. 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 jquery

// = require bootstrap-sprockets

//= require jquery_ujs
//= require turbolinks
//= require_tree .


//= require twitter/bootstrap

我的Gemfile：

source 'https://rubygems.org'


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.0.0', '>= 5.0.0.1'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use Puma as the app server
gem 'puma', '~> 3.0'
# Use SCSS for stylesheets
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', '~> 4.2'
# 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 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'
gem 'bootstrap-sass'

gem 'sass-rails', '~> 5.0'

gem 'twitter-bootstrap-rails'

# 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', platform: :mri
end

group :development do
  # Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
  gem 'web-console'
  gem 'listen', '~> 3.0.5'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Answer 1

您是否已将以下内容添加到Gemfile并在此之后运行bundle install？

gem 'bootstrap-sass', '~> 3.3.6'
gem 'sass-rails', '>= 3.2'

rails使用sprockets框架来预处理资产，其中包括样式表，javascripts和图像。在进行预处理时，遇到@import "bootstrap";时，它会遍历资产路径目录，以便找到导入的引导程序目录或文件。根据您遇到的错误，sprockets引擎看起来无法找到bootstrap。

确保您已在bootstrap-sass中加入Gemfile并运行bundle install以查看错误是否消失。

Answer 2

执行此操作：

<强> application.css.scss

/*
 * 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_self
 */

<强> application.css

/*
 * This is a manifest file that'll automatically include all the stylesheets available in this directory
 * and any sub-directories. You're free to add application-wide styles to this file and they'll appear at
 * the top of the compiled file, but it's generally better to create a new file per style scope.
 *= require_self
 *= require_tree .
*/

<强>的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 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 twitter/bootstrap
//= require turbolinks

按照特定的顺序！

<强> Gemfile.rb

gem 'sass-rails', '~> 5.0'
gem 'twitter-bootstrap-rails'

确保在任何群组之外的宝石文件中都有这2个宝石。然后运行bundle install

如何修复错误：Ruby on Rails中的帖子#index中的“Sass :: SyntaxError”？

2 个答案: