title: omniauth with linkedin
body: <p>I am trying to set up an authentication using using omniauth via linkedin. I am trying to follow the railscast #241 (Simple OmniAuth). Unfortunately I keep getting an error when I start my rails server in my local environment: </p>
  
  <p>/Users/steve/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/omniauth-1.0.2/lib/omniauth/builder.rb:33:in `rescue in provider': Could not find matching strategy for :linked_in. You may need to install an additional gem (such as omniauth-linked_in). (LoadError)</p>
  
  <p>Gemfile</p>
  
  <pre><code>source 'http://rubygems.org'
  gem 'rails', '3.0.11'
  gem 'omniauth'
  gem 'sqlite3
  </code></pre>
  
  <p>Congfig/Initializer/Omniauth.rb</p>
  
  <pre><code>Rails.application.config.middleware.use OmniAuth::Builder do
    provider :linked_in, 'CONSUMER_KEY', 'CONSUMER_SECRET'
  end
  </code></pre>
  
  <p>I'm just a newbie so if not sure if other info is needed to clarify issue.
  Thanks
  Steve</p>