Ruby on rails 使用Desive登录Facebook

我使用omniauth facebook 1.4.1和Desive登录facebook。这是一个错误

Could not authorize you from Facebook because "Csrf detected".

人们似乎通过将omniauth facebook降级到1.4.0来解决这个问题。我试过了，但现在出现了错误

The action 'facebook' could not be found for Devise::OmniauthCallbacksController.

我有路线

devise_for :users, :controllers => { :omniauth_callbacks => :omniauth_callbacks} 

omniauth_回调位于控制器目录中：

class OmniauthCallbacksController < Devise::OmniauthCallbacksController
def facebook
  # You need to implement the method below in your model
  @user = User.find_for_facebook_oauth(env["omniauth.auth"], current_user)  

  if @user.persisted?
    flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Facebook"
    sign_in_and_redirect @user, :event => :authentication
  else
    session["devise.facebook_data"] = env["omniauth.auth"]
    redirect_to new_user_registration_url
  end
end
end

class OmniAuthCallbackController“Facebook”
登录并重定向@user，：event=>：身份验证
其他的
会话[“designe.facebook_data”]=env[“omniauth.auth”]
将\重定向到新\用户\注册\ url
结束
结束
结束

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有什么建议吗？

哦，我发现了问题所在。在route.rb中，我有一行代码

devise_for :users, :controllers => { :registrations => :registrations }

在前面

devise_for :users, :controllers => { :omniauth_callbacks => "users/omniauth_callbacks"}

这会覆盖该方法，因此会导致

The action 'facebook' could not be found for Devise::OmniauthCallbacksController.

我对第一行进行了注释，然后它就开始工作了