title: Cant find class when using "Whoops!" library?
body: <p>Recently I have been trying the Whoops! library and trying to get it to work, however, unfortunately this is the closest I have gotten to get it working.</p>
  
  <p>I installed it via the composer using this tutorial
  <a href="https://code.tutsplus.com/tutorials/whoops-php-errors-for-cool-kids--net-32344" rel="nofollow noreferrer">https://code.tutsplus.com/tutorials/whoops-php-errors-for-cool-kids--net-32344</a></p>
  
  <p>PHP:</p>
  
  <pre><code>&lt;?php
  ini_set('display_errors', 1);
  ini_set('display_startup_errors', 1);
  error_reporting(E_ALL);
  
  # index.php
  require(getcwd() . "/vendor/autoload.php");
  
  $whoops = new Whoops\Run();
  $whoops-&gt;pushHandler(new Whoops\Handler\PrettyPageHandler());
  
  // Set Whoops as the default error and exception handler used by PHP:
  $whoops-&gt;register();
  
  throw new RuntimeException("Oopsie!");
  ?&gt;
  </code></pre>
  
  <p>Error:</p>
  
  <pre><code>Fatal error: Uncaught Error: Class 'Whoops\Run' not found in C:\Users\Administrator\Desktop\CMS\app\library\whoops\index.php:9 Stack trace: #0 {main} thrown in C:\Users\Administrator\Desktop\CMS\app\library\whoops\index.php on line 9
  </code></pre>