NameError at / uninitialized constant Main

Question

I am using gem 'devise' for authentication in my project. Everything was fine but after adding gem 'cancancan' in my gemfile. Then I logged in as a user for test my app and saw this "NameError at / uninitialized constant Main".

project gemfile:

gem 'devise'
gem 'carrierwave'
gem 'bootstrap-sass'
gem 'cancancan'
gem 'better_errors

project models:

ability.rb file:

class Ability
  include CanCan::Ability

  def initialize(user)
  end
end

user.rb file:

class User < ActiveRecord::Base
  devise :database_authenticatable, :registerable,:confirmable,
         :recoverable, :rememberable, :trackable, :validatable
end

project controller: main_controller.rb file

class MainController < ApplicationController

  load_and_authorize_resource

  def index
  end

  def me
  end
end

where am I doing wrong? Please give me your advice.

Thanks, Mezbah

Answer 1

load_and_authorize_resource method is provided to automatically authorize all actions in a RESTful style resource controller

你只是没有Main模型