Fatal error: Uncaught Error: Class "Symfony\Component\Finder\Tests\Iterator\RealIteratorTestCase" not found in C:\xampp\htdocs\r10ca\vendor\symfony\finder\Tests\FinderTest.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\r10ca\vendor\symfony\finder\Tests\FinderTest.php on line 17