Question

所以我对ruby和rails很新，我正在完全遵循这个教程：http://guides.rubyonrails.org/getting_started.html

我在使用基本的“Hello，Rails！”时遇到了问题。即使我按照并对

进行适当的更改，localhost：3000上的输出也是如此

app/views/welcome/index.html.erb

和

config/routes.rb

localhost：3000仍显示默认的Ruby on Rails欢迎屏幕而不是“Hello，Rails！”

文件中的

app/views/welcome/index.html.erb

我有以下代码：

<h1>Hello, Rails!</h1>

文件中的

config/routes.rb

我有以下代码：

Blog::Application.routes.draw do
  get "welcome/index"

  # You can have the root of your site routed with "root"
  # just remember to delete public/index.html.
   root :to => 'welcome#index'


end

我最初用

生成了控制器

rails generate controller welcome index

谢谢！

编辑：

我删除了public / index文件夹，现在在浏览器中出现以下错误：

ExecJS::RuntimeError in Welcome#index

Showing C:/blog/app/views/layouts/application.html.erb where line #6 raised:


  (in C:/blog/app/assets/javascripts/welcome.js.coffee)

Extracted source (around line #6):

3: <head>
4:   <title>Blog</title>
5:   <%= stylesheet_link_tag    "application", :media => "all" %>
6:   <%= javascript_include_tag "application" %>
7:   <%= csrf_meta_tags %>
8: </head>
9: <body>

Rails.root: C:/blog
Application Trace | Framework Trace | Full Trace

app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb__607271608_36500496'

编辑2：

rake路线给出：

welcome_index GET /welcome/index(.:format) welcome#index
        root           /                   welcome#

编辑3：

welcome.js.coffee的来源：

# Place all the behaviors and hooks related to the matching controller here.
# All this logic will automatically be available in application.js.
# You can use CoffeeScript in this file: http://jashkenas.github.com/coffee-script/

Gemfile的来源：

source 'https://rubygems.org'

gem 'rails', '3.2.13'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

gem 'sqlite3'


# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'

  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  gem 'therubyracer', :platforms => :ruby

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'

# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'

# To use Jbuilder templates for JSON
# gem 'jbuilder'

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

# Deploy with Capistrano
# gem 'capistrano'

# To use debugger
# gem 'debugger'

Answer 1

检查您的控制器文件是否为welcome_controller.rb。另外检查类名是否为“WelcomeController”。

编辑：

您似乎遇到了ExecJS异常。请将一个javascript运行时添加到gemfile：

gem  'therubyracer'

我讨厌窗户。

Answer 2

如果您不打算使用Turbolink，则可以在创建rails项目时运行new your_project_name --skip-turbolinks，以避免安装带有rails的Turbolink。这样，您将在学习基础知识时避免此类错误。

Answer 3

解决了它：

转到

C:/blog/app/views/layouts/application.html.erb line #6

并删除javascript行。

但这真的很愚蠢，我认为真正的解决方案是切换到linux。

Answer 4

是的，真的对我有用。从C:/blog/app/views/layouts/application.html.erb开始删除以下行：

<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>

基本的Hello，Rails！不工作

4 个答案: