Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in /home/wizilen/www/vendor/symfony/validator/DataCollector/ValidatorDataCollector.php:30 Stack trace: #0 {main} thrown in /home/wizilen/www/vendor/symfony/validator/DataCollector/ValidatorDataCollector.php on line 30