Fatal error: Uncaught Error: Class "PHPUnit\Framework\Constraint\Constraint" not found in C:\laragon\www\newProject.SymfonyUser\vendor\symfony\notifier\Test\Constraint\NotificationSubjectContains.php:20 Stack trace: #0 {main} thrown in C:\laragon\www\newProject.SymfonyUser\vendor\symfony\notifier\Test\Constraint\NotificationSubjectContains.php on line 20