ruby on rails tutorial section 3.2 rspec testing error

Question

recently started the RoRTute by Michael Hartl, getting stuck trying my first rspec test in section 3.2, at this point the test is meant to fail but all i get are errors which I'm having a hard time interpreting. I've had a look around but not getting much luck finding a similar error and/or solution. I am brand new to programming and ruby/rails. Any help would be greatly appreciated, thank you!

terminal error output

Macintosh:sample_app rails$ bundle exec rspec spec/requests/static_pages_spec.rb 
/Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common/zipper.rb:1:in `require': cannot load such file -- zip/zip (LoadError)
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common/zipper.rb:1:in `<top (required)>'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common.rb:9:in `require'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common.rb:9:in `<top (required)>'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver.rb:29:in `require'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver.rb:29:in `<top (required)>'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium-webdriver.rb:1:in `require'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/selenium-webdriver-2.0.0/lib/selenium-webdriver.rb:1:in `<top (required)>'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
        from /Users/rails/rails_projects/sample_app/config/application.rb:12:in `<top (required)>'
        from /Users/rails/rails_projects/sample_app/config/environment.rb:2:in `require'
        from /Users/rails/rails_projects/sample_app/config/environment.rb:2:in `<top (required)>'
        from /Users/rails/rails_projects/sample_app/spec/spec_helper.rb:3:in `require'
        from /Users/rails/rails_projects/sample_app/spec/spec_helper.rb:3:in `<top (required)>'
        from /Users/rails/rails_projects/sample_app/spec/requests/static_pages_spec.rb:1:in `require'
        from /Users/rails/rails_projects/sample_app/spec/requests/static_pages_spec.rb:1:in `<top (required)>'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `load'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `block in load_spec_files'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `each'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `load_spec_files'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/rspec-core-2.13.1/lib/rspec/core/command_line.rb:22:in `run'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:80:in `run'
        from /Users/rails/.rvm/gems/ruby-2.0.0-p247@railstutorial_rails_4_0/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:17:in `block in autorun'

gemfile

source 'https://rubygems.org'
ruby '2.0.0'
#ruby-gemset=railstutorial_rails_4_0

gem 'rails', '4.0.0'

group :development, :test do
  gem 'sqlite3', '1.3.7'
  gem 'rspec-rails', '2.13.1'
end

group :test do
  gem 'selenium-webdriver', '2.0.0'
  gem 'capybara', '2.1.0'
end

gem 'sass-rails', '4.0.0'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.0.0'
gem 'jquery-rails', '2.2.1'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'

group :doc do
  gem 'sdoc', '0.3.20', require: false
end

group :production do
  gem 'pg', '0.15.1'
  gem 'rails_12factor', '0.0.2'
end

spec_helper.rb

# This file is copied to spec/ when you run 'rails generate rspec:install'
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'rspec/autorun'

Dir[Rails.root.join("spec/support/**/*.rb")].each { |f| require f }

ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)

RSpec.configure do |config|

  config.fixture_path = "#{::Rails.root}/spec/fixtures"

  config.use_transactional_fixtures = true

  config.infer_base_class_for_anonymous_controllers = false

  config.order = "random"

  config.include Capybara::DSL
end

static_pages_specs.rb

require 'spec_helper'

describe "Static pages" do

  describe "Home page" do

    it "should have the content 'Sample App'" do
      visit '/static_pages/home'
      expect(page).to have_content('Sample App')
    end
  end
end

Answer 1

It seems you are using old version of gem. Try 'selenium-webdriver', '~> 2.35.1' latest