acts_as_follower - 缺少必需的键：[：id]

Question

我正在尝试将acts_as_follower gem添加到我正在开发的rails应用程序中，但我似乎总是得到一个异常错误，表示用户ID为nil。浏览我在Google上找到的每个教程，似乎都没有解决我的问题。

用户控制器：

class UsersController < ApplicationController

  def follow
    @user = User.find(params[:id])
    current_user.follow(@user)
    redirect_to :back
  end

  def unfollow
    @user = User.find(params[:id])
    current_user.stop_following(@user)
    redirect_to :back
  end

end

用户模型：

class User < ActiveRecord::Base
  has_many :posts, dependent: :destroy
  acts_as_follower
  acts_as_followable
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable
end

发布模型：

class Post < ActiveRecord::Base
    belongs_to :user
    mount_uploader :avatar, AvatarUploader
    acts_as_followable
end

routes.rb中：

Rails.application.routes.draw do

  resources :posts

  devise_for :users
  root 'page#index'
  get '/users/:id' => 'page#profile'
  get 'page/feed'
  get 'page/home'

  resources :users do
    member do
      get :follow
      get :unfollow
    end
  end
end

我要添加到个人资料视图的链接：

<%= link_to "Follow", follow_user_path(@user)%>

我在路线上写错了吗？因为它在我在控制台中测试时起作用了。错误开始显示我试图让它真正为用户提供功能。