尝试生成设计时出错：在Ruby on Rails中安装 [英] Error when trying to generate devise:install in Ruby on Rails

问题描述

我是Ruby on Rails的新手，我试着从Internet上做一些例子。但是当我尝试生成设计安装时出现错误。
我通过添加 gem devise 修改了Gemfile。然后运行：

 捆绑安装
  

但是当我运行时。

  rails生成设备：安装
  

我有下一个错误：

  /usr/local/lib/ruby/gems/0.9.1/gems/devise-1.1.3/lib/devise.rb:193:in`mailer ='：未定义的方法`ref'用于ActiveSupport :: Dependencies：Module （NoMethodError）$ / $ b / from /usr/local/lib/ruby/gems/1.9.1/gems/devise-1.1.3/lib/devise.rb:195:in`< module：Devise>'$ b $ from /usr/local/lib/ruby/gems/1.9.1/gems/devise-1.1.3/lib/devise.rb:4:in`< top（required）>'
 from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in`require'$ b $ from / usr / local / lib / ruby /gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in`block（2 levels）in require'
 from / usr / local / lib / ruby​​ / gems /1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in /usr/local/lib/ruby/gems/1.9.1中的每个'
' /gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in`block in require'
 from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3 .5 / lib / bundler / runtime.rb：59：来自/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime的`each'
 .rb：59：在'require'中
从/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler.rb:132:in'require'$ b / b from /home/mihai/Desktop/blog/config/application.rb:7:in`< top（required）>'
 from /usr/local/lib/ruby/gems/1.9。 1 / gems / railties-3.2.13 / lib / rails / commands.rb：24：在'require'中
来自/usr/local/lib/ruby/gems/1.9.1/gems/railties-3.2。 13 / lib / rails / commands.rb：24：在< top（required）>'脚本/ rails中
：6：在'require'
脚本/ rails中：6：in `< main>'
  

请帮助我！

解决方案

Devise的版本比较陈旧。

您可以这样做：

 包更新de vise 
  

然后：

  bundle install 
  

这应该升级Devise gem。

I'm a new to Ruby on Rails and I tried to do some examples from Internet. But I have an error when I'm trying to generate devise install. I modified the Gemfile by adding gem devise. Then run:

bundle install

but when I run.

rails generate devise:install

I had the next error:

/usr/local/lib/ruby/gems/0.9.1/gems/devise-1.1.3/lib/devise.rb:193:in `mailer=': undefined method `ref' for ActiveSupport::Dependencies:Module (NoMethodError)
    from /usr/local/lib/ruby/gems/1.9.1/gems/devise-1.1.3/lib/devise.rb:195:in `<module:Devise>'
    from /usr/local/lib/ruby/gems/1.9.1/gems/devise-1.1.3/lib/devise.rb:4:in `<top (required)>'
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from /home/mihai/Desktop/blog/config/application.rb:7:in `<top (required)>'
    from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:24:in `require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:24:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

Please help me!

解决方案

The version of Devise is rather old.

You can do:

bundle update devise

And then:

bundle install

This should upgrade the Devise gem.

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