使用层次结构/模块加载错误

Question

我有一个如下所示的目录结构：

\- app
  \- models
  \- services
    \- recommended_action
      |- base.rb
      |- other_recommended_action.rb
    |- random_service.rb

在我的application.rb中，我通过

自动加载recommended_action目录

config.autoload_paths += %W(
  #{config.root}/app/services/recommended_action
)

我的base.rb文件如下所示：

module RecommendedAction
  class Base
    def initialize(attributes = {})
      # assign the attributes
    end
  end
end

但是，每当我尝试加载rails控制台时，我都会收到以下错误：

Unable to autoload constant Base, expected /Users/justin/project/app/services/recommended_action/base.rb to define it (LoadError)

我错过了什么？