Fatal error: Uncaught Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in C:\xampp\htdocs\vistas_piter\Front-PIT\vendor\symfony\console\Event\QuestionAnsweredEvent.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vistas_piter\Front-PIT\vendor\symfony\console\Event\QuestionAnsweredEvent.php on line 21