Fatal error: Uncaught Error: Class 'Symfony\Component\Finder\Tests\Iterator\IteratorTestCase' not found in E:\xampp\htdocs\vendor\symfony\finder\Tests\Iterator\RealIteratorTestCase.php:14 Stack trace: #0 {main} thrown in E:\xampp\htdocs\vendor\symfony\finder\Tests\Iterator\RealIteratorTestCase.php on line 14