使用 Rails 上的 Ruby 将 stylesheet_link_tag 中的 'default' 从 application.html.erb 更改为 'application' 时出错

Question

我正在从头开始构建一个新应用程序。上周刚开始学习RoR。我一直在学习完美的教程 except:

我正在尝试安装 Bootstrap 时出现错误。

所以：

Windows 10

我工作的环境版本是：

Ruby 2.2.4 Rails 4.2.5.1

逐步按照https://github.com/twbs/bootstrap-sass的说明进行操作。（安装宝石，放置 @import 行等）

我得到的错误如下：

ExecJS::ProgramError... ...application.html.erb where line #5 raised: TypeError: Object doesn't support this property or method

Google 搜索并找到 解决方案：

如果我在 application.html.erb 中从 'application' 更改为 'default'，错误就会消失，但我没有得到 bootstrap 样式。 一切恢复正常。

文件：

宝石文件

source 'https://rubygems.org'

gem 'rails', '4.2.5.1'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc

gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

group :development, :test do
  gem 'sqlite3'
  gem 'byebug'
end

group :development do
  gem 'web-console', '~> 2.0'
end

group :test do
  gem 'minitest-reporters'
  gem 'mini_backtrace'
  gem 'guard-minitest'
end

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

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.
 *
 */

 @import "bootstrap-sprockets";
 @import "bootstrap";

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 turbolinks
//= require bootstrap-sprockets

application.html.erb

<%= stylesheet_link_tag 'application', :media => "all" %>
  <%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
  <%= csrf_meta_tags %> ...

我遇到的另一个问题：

当使用 link_to 作为 destroy 的动作时，似乎没有任何变化。

谷歌搜索，我发现如果我更改为 button_to，destroy 操作将完美运行，但我认为这是一个应该更正的问题。

Answer 1

所以我通过以下操作修复了它：

下载node.js并安装。
在此处找到 ExecJS 的 runtimes.rb 文件：\RUBYINSTALLATIONFOLDER\lib\ruby\gems.2.0\gems\execjs-2.6.0\lib\execjs并将其更改为 ExecJS::RuntimeError on Windows trying to follow rubytutorial

使用 Rails 上的 Ruby 将 stylesheet_link_tag 中的 'default' 从 application.html.erb 更改为 'application' 时出错

Error when changing 'default' to 'application' in stylesheet_link_tag from application.html.erb using Ruby on Rails

ruby-on-rails

railstutorial.org

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