title: Hartl's Chapter 7 when pushing to heroku, "pg is not part of the bundle" but it is
body: <p>So I'm going through Hartl's Tutorial on RoR and I'm at the <a href="http://ruby.railstutorial.org/chapters/sign-up#sec-deploying_to_production_with_ssl" rel="nofollow">end of chapter 7</a>. I'm trying to deploy to heroku. Everything up until the</p>
  
  <pre><code>heroku run rake db:migrate
  </code></pre>
  
  <p>step works, but that step gives me the error below. I ran <code>bundle install</code> several times and I'm not sure where my problem is. Also I can't access my heroku app online, even if I run <code>heroku create --stack cedar</code> and then <code>git push heroku</code>. It just gives me an application error when I go to my heroku app URL. </p>
  
  <p>I am currently running Postgres.app and my rails server is not deployed.</p>
  
  <p>Included is my <code>Gemfile</code> and <code>database.yml</code>. Feel free to look at the code at <a href="http://github.com/sambaek" rel="nofollow">http://github.com/sambaek</a></p>
  
  <p>Can someone help out? Thanks!</p>
  
  <h2>Terminal output</h2>
  
  <pre><code>heroku run rake db:migrate
  Running `rake db:migrate` attached to terminal... up, run.1
  DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from &lt;top (required)&gt; at /app/Rakefile:7)
  DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from &lt;top (required)&gt; at /app/Rakefile:7)
  Connecting to database specified by DATABASE_URL
  rake aborted!
  Please install the postgresql adapter: `gem install activerecord-postgresql-adapter` (pg is not part of the bundle. Add it to Gemfile.)
  
  Tasks: TOP =&gt; db:migrate =&gt; db:load_config
  (See full trace by running task with --trace)
  </code></pre>
  
  <h2>Gemfile</h2>
  
  <pre><code>source 'https://rubygems.org'
  
  gem 'rails', '3.2.8'
  gem 'bootstrap-sass', '2.0.4'
  gem 'bcrypt-ruby', '3.0.1'
  
  group :development, :test do
    gem 'rspec-rails', '2.11.0'
    gem 'guard-rspec', '0.5.5'
    gem 'pg'
    # gem 'sqlite3'
    gem 'guard-spork', '0.3.2'
    gem 'spork', '0.9.0'
    gem 'factory_girl_rails', '1.4.0'
  end
  
  gem 'annotate', '2.5.0', group: :development
  
  # Gems used only for assets and not required
  # in production environments by default.
  group :assets do
    gem 'sass-rails',   '3.2.5'
    gem 'coffee-rails', '3.2.2'
    gem 'uglifier', '1.2.3'
  end
  
  gem 'jquery-rails', '2.0.2'
  
  group :test do
    gem 'capybara', '1.1.2'
    gem 'rb-fsevent', '0.9.1', :require =&gt; false
    gem 'growl', '1.0.3'
  end
  </code></pre>
  
  <h2>config/database.yml</h2>
  
  <pre><code># postgresql
  development:
    host: localhost
    adapter: postgresql
    encoding: utf8
    database: sample_app_development
    pool: 5
    username: 
    password: 
  
  test:
    host: localhost
    adapter: postgresql
    encoding: utf8
    database: sample_app_test
    pool: 5
    username: 
    password: 
  
  production:
    adapter: postgresql
    encoding: utf8
    database: sample_app_production
    pool: 5
    username:
    password:
  
  
  # sqlite3
  # development:
  #   adapter: sqlite3
  #   database: db/development.sqlite3
  #   pool: 5
  #   timeout: 5000
  
  # # Warning: The database defined as "test" will be erased and
  # # re-generated from your development database when you run "rake".
  # # Do not set this db to the same as development or production.
  # test:
  #   adapter: sqlite3
  #   database: db/test.sqlite3
  #   pool: 5
  #   timeout: 5000
  
  # production:
  #   adapter: sqlite3
  #   database: db/production.sqlite3
  #   pool: 5
  #   timeout: 5000
  </code></pre>