title: PHP Fatal error: APCuIterator::__construct(): APC must be enabled to use APCuIterator
body: <p>I'm on windows 10 and I work on Symfony 3.4 application.</p>
  
  <p>How can I enable APC to use APCuIteraor? </p>
  
  <p>Actually I get this: </p>
  
  <blockquote>
    <p>"PHP Fatal error:  APCuIterator::__construct(): APC must be enabled to
    use APCuIterator in C:...\vendor\symfony\symfony\src\Symfony\Component\Cache\Traits\ApcuTrait.php (path_of_ApcuTrait.php_in_CACHE)"</p>
  </blockquote>
  
  <p>when I want to add some new packages in my project with the command <code>composer require</code>.</p>