Fatal error: Uncaught Error: Class 'Symfony\Component\Translation\Dumper\FileDumper' not found in D:\xampp\htdocs\vendor\symfony\translation\Dumper\XliffFileDumper.php:22 Stack trace: #0 {main} thrown in D:\xampp\htdocs\vendor\symfony\translation\Dumper\XliffFileDumper.php on line 22