无法生成scaffold

Question

我尝试使用this tutorial，但在脚手架生成代码方面遇到了一些问题。

application.rb

Bundler.require(:default, Rails.env) if defined?(Bundler) 
#if defined?(Bundler) 
  # If you precompile assets before deploying to production, use this line
  # Bundler.require(*Rails.groups(:assets => %w(development test)))
  # If you want your assets lazily compiled in production, use this line
  # Bundler.require(:default, :assets, Rails.env)
#end

采用this topic的解决方案，但不能很好地解决这个问题。

日志：

C:\Users\Evgeny\Rails_projects\demo_app>rails generate scaffold User name:string
 email:string
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.0.9/lib/rails/ra
iltie/configuration.rb:77:in `method_missing': undefined method `assets' for #<R
ails::Application::Configuration:0x3a03248> (NoMethodError)
        from C:/Users/Evgeny/Rails_projects/demo_app/config/application.rb:55:in
 `<class:Application>'
        from C:/Users/Evgeny/Rails_projects/demo_app/config/application.rb:14:in
 `<module:DemoApp>'
        from C:/Users/Evgeny/Rails_projects/demo_app/config/application.rb:13:in
 `<top (required)>'
        from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.0.9
/lib/rails/commands.rb:15:in `require'
        from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.0.9
/lib/rails/commands.rb:15:in `<top (required)>'
        from script/rails:6:in `require'
        from script/rails:6:in `<main>'

配置应用程序：

source 'http://rubygems.org'

gem 'rails', '3.0.9'
gem 'sqlite3', '1.3.3'

Answer 1

这是关于资产的东西。我认为你至少需要将你的rails升级到3.1。3.2.3更好。

尝试使用最新版本的rails 3.2.3创建新项目。

或者尝试这个解决方案http://railscasts.com/episodes/282-upgrading-to-rails-3-1或教程书http://russian.railstutorial.org/chapters/rails-3-1#top的最后一章。

没有升级的另一个解决方案，但我不确定。在您的配置/application.rb中，尝试查找config.assets.enabled并将其设置为false。

Answer 2

Rails资产管道直到Rails 3.1或更高版本才可用。我猜是在C:/Users/Evgeny/Rails_projects/demo_app/config/application.rb，的55行，有一条config.assets行导致了这个问题。删除该行或升级到Rails 3.1或3.2