Fatal error: Uncaught Error: Class "Doctrine\Persistence\Mapping\Driver\FileDriver" not found in C:\xampp\htdocs\addfirst\vendor\doctrine\persistence\src\Persistence\Mapping\Driver\PHPDriver.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\addfirst\vendor\doctrine\persistence\src\Persistence\Mapping\Driver\PHPDriver.php on line 15