Fatal error: Uncaught Error: Class 'Symfony\Component\Process\Pipes\AbstractPipes' not found in /opt/lampp/htdocs/kuesioner/vendor/symfony/process/Pipes/WindowsPipes.php:27 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/kuesioner/vendor/symfony/process/Pipes/WindowsPipes.php on line 27