Fatal error: Uncaught Error: Class 'Symfony\Component\Translation\Catalogue\AbstractOperation' not found in D:\xampp\htdocs\member_code_cu\membertest\vendor\symfony\translation\Catalogue\MergeOperation.php:25 Stack trace: #0 {main} thrown in D:\xampp\htdocs\member_code_cu\membertest\vendor\symfony\translation\Catalogue\MergeOperation.php on line 25