Ruby on Rails Tutorialでuser_page_specが実行されません。

Question

いつもお世話になっております。
Ruby on Rails Tutorial 8章でuser_pages_specが
エラーとなってしまい、それ以降を実行することができません。

おそらく実行ページ先が見つかっていないのかと思いますが、
チュートリアル通りには従っているはずなので困っています。

どうかお助けくださいませ。

下記の続きとなります。
https://teratail.com/questions/12650

1. User pages profile page

 Failure/Error: let(:user) { FactoryGirl.create(:user) }
 NoMethodError:
   undefined method `remember_token=' for #<User:0x007fb94548f7c8>
 # ./app/models/user.rb:23:in `create_remember_token'
 # ./spec/requests/user_pages_spec.rb:8:in `block (3 levels) in <top (required)>'
 # ./spec/requests/user_pages_spec.rb:9:in `block (3 levels) in <top (required)>'

1. User pages profile page

 Failure/Error: let(:user) { FactoryGirl.create(:user) }
 NoMethodError:
   undefined method `remember_token=' for #<User:0x007fb9417b7468>
 # ./app/models/user.rb:23:in `create_remember_token'
 # ./spec/requests/user_pages_spec.rb:8:in `block (3 levels) in <top (required)>'
 # ./spec/requests/user_pages_spec.rb:9:in `block (3 levels) in <top (required)>'

1. User pages signup page

 Failure/Error: before { visit signup_path }
 ActionView::Template::Error:
   SQLite3::SQLException: no such column: users.remember_token: SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = 'da39a3ee5e6b4b0d3255bfef95601890afd80709' LIMIT 1
 # ./app/helpers/sessions_helper.rb:20:in `current_user'
 # ./app/helpers/sessions_helper.rb:11:in `signed_in?'
 # ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb___2063214517191558985_70216852545980'
 # ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb___3393450340642813266_70216830195980'
 # ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'

1. User pages signup page

 Failure/Error: before { visit signup_path }
 ActionView::Template::Error:
   SQLite3::SQLException: no such column: users.remember_token: SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = 'da39a3ee5e6b4b0d3255bfef95601890afd80709' LIMIT 1
 # ./app/helpers/sessions_helper.rb:20:in `current_user'
 # ./app/helpers/sessions_helper.rb:11:in `signed_in?'
 # ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb___2063214517191558985_70216852545980'
 # ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb___3393450340642813266_70216830195980'
 # ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'

1. User pages signup with invalid information should not create a user

 Failure/Error: before { visit signup_path }
 ActionView::Template::Error:
   SQLite3::SQLException: no such column: users.remember_token: SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = 'da39a3ee5e6b4b0d3255bfef95601890afd80709' LIMIT 1
 # ./app/helpers/sessions_helper.rb:20:in `current_user'
 # ./app/helpers/sessions_helper.rb:11:in `signed_in?'
 # ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb___2063214517191558985_70216852545980'
 # ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb___3393450340642813266_70216830195980'
 # ./spec/requests/user_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

1. User pages signup with valid information should create a user

 Failure/Error: before { visit signup_path }
 ActionView::Template::Error:
   SQLite3::SQLException: no such column: users.remember_token: SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = 'da39a3ee5e6b4b0d3255bfef95601890afd80709' LIMIT 1
 # ./app/helpers/sessions_helper.rb:20:in `current_user'
 # ./app/helpers/sessions_helper.rb:11:in `signed_in?'
 # ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb___2063214517191558985_70216852545980'
 # ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb___3393450340642813266_70216830195980'
 # ./spec/requests/user_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

1. User pages signup with valid information after saving the user

 Failure/Error: before { visit signup_path }
 ActionView::Template::Error:
   SQLite3::SQLException: no such column: users.remember_token: SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = 'da39a3ee5e6b4b0d3255bfef95601890afd80709' LIMIT 1
 # ./app/helpers/sessions_helper.rb:20:in `current_user'
 # ./app/helpers/sessions_helper.rb:11:in `signed_in?'
 # ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb___2063214517191558985_70216852545980'
 # ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb___3393450340642813266_70216830195980'
 # ./spec/requests/user_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

1. User pages signup with valid information after saving the user

 Failure/Error: before { visit signup_path }
 ActionView::Template::Error:
   SQLite3::SQLException: no such column: users.remember_token: SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = 'da39a3ee5e6b4b0d3255bfef95601890afd80709' LIMIT 1
 # ./app/helpers/sessions_helper.rb:20:in `current_user'
 # ./app/helpers/sessions_helper.rb:11:in `signed_in?'
 # ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb___2063214517191558985_70216852545980'
 # ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb___3393450340642813266_70216830195980'
 # ./spec/requests/user_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

1. User pages signup with valid information after saving the user

 Failure/Error: before { visit signup_path }
 ActionView::Template::Error:
   SQLite3::SQLException: no such column: users.remember_token: SELECT  "users".* FROM "users"  WHERE "users"."remember_token" = 'da39a3ee5e6b4b0d3255bfef95601890afd80709' LIMIT 1
 # ./app/helpers/sessions_helper.rb:20:in `current_user'
 # ./app/helpers/sessions_helper.rb:11:in `signed_in?'
 # ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb___2063214517191558985_70216852545980'
 # ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb___3393450340642813266_70216830195980'
 # ./spec/requests/user_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

◼︎ user_page_spec.rb

require 'spec_helper'

describe "User pages" do

  subject { page }

  describe "profile page" do
    let(:user) { FactoryGirl.create(:user) }
    before { visit user_path(user) }

    it { should have_content(user.name) }
    it { should have_title(user.name) }
  end

  describe "signup page" do
    before { visit signup_path }

    it { should have_content('Sign up') }
    it { should have_title(full_title('Sign up')) }
  end

describe "signup" do

    before { visit signup_path }

    let(:submit) { "Create my account" }

    describe "with invalid information" do
      it "should not create a user" do
        expect { click_button submit }.not_to change(User, :count)
      end
    end

    describe "with valid information" do
      before do
        fill_in "Name",         with: "Example User"
        fill_in "Email",        with: "[e-mail]"
        fill_in "Password",     with: "foobar"
        fill_in "Confirmation", with: "foobar"
      end

      it "should create a user" do
        expect { click_button submit }.to change(User, :count).by(1)
      end
      
      describe "after saving the user" do
        before { click_button submit }
        let(:user) { User.find_by(email: '[e-mail]') }

        it { should have_link('Sign out') }
        it { should have_title(user.name) }
        it { should have_selector('div.alert.alert-success', text: 'Welcome') }
      end
    end
  end
end