Fatal error: Uncaught Error: Class 'Symfony\Component\Form\Tests\AbstractFormTest' not found in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\form\Tests\SimpleFormTest.php:55 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\form\Tests\SimpleFormTest.php on line 55