Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in /var/www/html/test-project/my-app/vendor/symfony/http-kernel/DataCollector/EventDataCollector.php:27 Stack trace: #0 {main} thrown in /var/www/html/test-project/my-app/vendor/symfony/http-kernel/DataCollector/EventDataCollector.php on line 27