Fatal error: Uncaught Error: Class 'Symfony\Bundle\FrameworkBundle\Test\KernelTestCase' not found in C:\Landaweb\webs\landaweb\backend\vendor\symfony\framework-bundle\Test\WebTestCase.php:22 Stack trace: #0 {main} thrown in C:\Landaweb\webs\landaweb\backend\vendor\symfony\framework-bundle\Test\WebTestCase.php on line 22