Ruby on rails: Undefined method 'let' - ruby-on-rails

Question

I am a newbie in Ruby on Rails, when I try method let in static_pages_specs.rb
require `spec_helper`
describe "Static pages" do
let(:base_title) { "Ruby on Rails Tutorial Sample App" }
describe "Home page" do
it "should have the title 'Home'" do
visit '/static_pages/home'
expect(page).to have_title("#{base_title} | Home")
end
end
end
I get an error
Failure/Error: visit '/static_pages/home'
ActionView::Template::Error:
undefined method `let' for Class:0x000000034b2230>:0x0000000374a6c8>
My Gemfile look like this
source 'https://rubygems.org'
ruby '1.9.3'
gem 'rails', '4.0.4'
group :development, :test do
gem 'sqlite3'
gem 'rspec-rails'
end
group :test do
gem 'selenium-webdriver'
gem 'capybara'
end
gem 'sass-rails', '~> 4.0.2'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.0.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 1.2'
group :doc do
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', require: false
end
group :production do
gem 'pg', '0.15.1'
gem 'rails_12factor', '0.0.2'
end
Also my spec_helper.rb look like this
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 }
# If you are not using ActiveRecord, you can remove this line.
ActiveRecord::Migration.check_pending! if defined?(ActiveRecord::Migration)
RSpec.configure do |config|
# Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
config.fixture_path = "#{::Rails.root}/spec/fixtures"
# If you're not using ActiveRecord, or you'd prefer not to run each of your
# examples within a transaction, remove the following line or assign false
# instead of true.
config.use_transactional_fixtures = true
# If true, the base class of anonymous controllers will be inferred
# automatically. This will be the default behavior in future versions of
# rspec-rails.
config.infer_base_class_for_anonymous_controllers = false
config.order = "random"
config.include Capybara::DSL
end
Do you have any ideas what am I missing? I am using Ubuntu 13.04.
Edit: Already tried let bang method but it still gets the same error.
In the previous post I forgot to put
require 'spec_helper'
in, but my code actually DID have it.
Sorry about that but it was not actually the problem there.
Solved: Thank you guys I've just solved it, it was just a silly typing in one of my templates.

Answer 1

Your static_pages_specs.rb is missing require 'spec_helper':
require `spec_helper`
describe "Static pages" do
...
end