uninitialized constant FactoryGirl (NameError) - ruby-on-rails

Question

when i change in env.rb file under feature/support
require 'cucumber/rails'
require "#{Rails.root}/spec/factories"
and in gemfile
source 'https://rubygems.org'
gem 'rails', '3.2.13'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'sqlite3'
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', :platforms => :ruby
gem 'uglifier', '>= 1.0.3'
end
group :test do
gem 'cucumber-rails'
gem 'capybara'
gem 'database_cleaner'
gem 'factory_girl_rails', :require => false
end
group :development, :test do
gem 'rspec-rails'
end
gem 'jquery-rails'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# To use Jbuilder templates for JSON
# gem 'jbuilder'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
# To use debugger
# gem 'debugger'
in spec/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'
require 'factory_girl_rails'
# Requires supporting ruby files with custom matchers and macros, etc,
# in spec/support/ and its subdirectories.
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}
in spec/factories.rb
FactoryGirl.define do
factory :user do
first_name "John"
last_name "Doe"
admin false
end
end
uninitialized constant FactoryGirl (NameError)
/home/manish/change/test_cucumber/spec/factories.rb:1:in `<top (required)>'
/home/manish/change/test_cucumber/features/support/env.rb:8:in `<top (required)>'
/home/manish/.rvm/gems/ruby-1.9.3-p392/gems/cucumber-1.3.5/lib/cucumber/rb_support/rb_language.rb:122:in `load'
/home/manish/.rvm/gems/ruby-1.9.3-p392/gems/cucumber-1.3.5/lib/cucumber/rb_support/rb_language.rb:122:in `load_code_file'
/home/manish/.rvm/gems/ruby-1.9.3-p392/gems/cucumber-1.3.5/lib/cucumber/runtime/support_code.rb:180:in `load_file'
/home/manish/.rvm/gems/ruby-1.9.3-p392/gems/cucumber-1.3.5/lib/cucumber/runtime/support_code.rb:83:in `block in load_files!'
/home/manish/.rvm/gems/ruby-1.9.3-p392/gems/cucumber-1.3.5/lib/cucumber/runtime/support_code.rb:82:in `each'

Answer 1

In spec/spec_helper.rb try adding
FactoryGirl.find_definitions
under
require 'factory_girl_rails'

Answer 2

I also faced this problem in Hartl tutorial.
If you are using Spork to speed up your tests and it is running in the background, you need to stop it (Ctrl+C) and restart it ($ bundle exec spork).