title: uninitialized constant Delayed::Job
body: <p>I've added the delayed_job gem to my gemfile and installed correctly but when I try to run the following line:</p>
  
  <pre><code>Delayed::Job.enqueue do_it(), 0, 1.minutes.from_now.getutc
  </code></pre>
  
  <p>I get the error 'uninitialized constant Delayed::Job'</p>
  
  <p>Can somebody explain what i need to do here? I've tried running 'rake jobs:work' beforehand but it also returns the 'uninitialized constant Delayed::Job' error. Additionally, I've added "require 'delayed_job'" to the file (application.rb) without much luck.</p>