title: Magento 2 Fatal Error when running composer:install
body: <ol>
  <li>Clone fresh Magento 2 instance;
  2.Run composer:install</li>
  </ol>
  
  <p>Fatal Error:
  <a href="https://i.stack.imgur.com/riWLl.png" rel="noreferrer">PHP Fatal error:  Uncaught Error: Undefined class constant 'PRE_COMMAND_RUN'</a></p>