Fatal error: Uncaught Error: Class 'Symfony\Component\Translation\Tests\Catalogue\AbstractOperationTest' not found in E:\xampp\htdocs\vendor\symfony\translation\Tests\Catalogue\MergeOperationTest.php:18 Stack trace: #0 {main} thrown in E:\xampp\htdocs\vendor\symfony\translation\Tests\Catalogue\MergeOperationTest.php on line 18