Fatal error: Uncaught Error: Class 'Symfony\Component\Translation\Dumper\FileDumper' not found in D:\xampp\htdocs\app_patient_test\vendor\symfony\translation\Dumper\PoFileDumper.php:21 Stack trace: #0 {main} thrown in D:\xampp\htdocs\app_patient_test\vendor\symfony\translation\Dumper\PoFileDumper.php on line 21