ruby-on-rails – 尝试生成设计时出错：在Ruby on Rails中安装

发布时间：2020-12-17 03:23:02 所属栏目：百科来源：网络整理

导读：我是 Ruby on Rails的新手,我试图从互联网上做一些例子.但是当我尝试生成设计安装时,我有一个错误. 我通过添加gem devise修改了Gemfile.然后运行： bundle install 但是当我跑 rails generate devise:install 我有下一个错误： /usr/local/lib/ruby/gems/0.9

我是 Ruby on Rails的新手,我试图从互联网上做一些例子.但是当我尝试生成设计安装时,我有一个错误.
我通过添加gem devise修改了Gemfile.然后运行：

bundle install

但是当我跑

rails generate devise:install

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=': 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>'

请帮我！

解决方法

Devise的版本相当陈旧.

你可以做：

bundle update devise

然后：

bundle install

这应该升级Devise gem.

（编辑：李大同）

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