Ruby on rails Rails LinkedIn登录错误

几个小时以来，我一直在想如何解决这个问题，但我无法解决。我不断地发现这个错误：

无法自动加载常量OmniAuthCallbackController，需要/Users/omar.amiri/Desktop/rails-designe-roles/app/controllers/omniauth\u callbacks\u controller.rb来定义它

omniauth\u回调\u控制器.rb

---

值得确认的是，omniauth_callbacks_controller.rb在app/controllers/中，并且user.rb.rb是user.rb的拼写错误，以避免任何混淆。是的，omniauth_callbacks_controller.rb在app/controllers中，而我的用户模型是唯一的user.rb…感谢您说出拼写错误。你能明白为什么它不起作用吗？

class OmniauthCallbacksController < Devise::OmniauthCallbacksController   

def linkedin
    auth = env["omniauth.auth"]
    @user = User.connect_to_linkedin(request.env["omniauth.auth"],current_user)
    if @user.persisted?
      flash[:notice] = I18n.t "devise.omniauth_callbacks.success"
      sign_in_and_redirect @user, :event => :authentication
    else
      session["devise.linkedin_uid"] = request.env["omniauth.auth"]
      redirect_to new_user_registration_url
    end

  end

end

class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable, :omniauthable

  def self.connect_to_linkedin(auth, signed_in_resource=nil)
    user = User.where(:provider => auth.provider, :uid => auth.uid).first
    if user
      return user
    else
      registered_user = User.where(:email => auth.info.email).first
      if registered_user
        return registered_user
      else

        user = User.create(name:auth.info.first_name,
                            provider:auth.provider,
                            uid:auth.uid,
                            email:auth.info.email,
                            password:Devise.friendly_token[0,20],
                          )
      end

    end
  end   

end

Rails.application.routes.draw do
  root to: 'visitors#index'
  devise_for :users, :controllers => { :omniauth_callbacks => "omniauth_callbacks" }
  resources :users
end