Fatal error: Uncaught Error: Class "Symfony\Bundle\FrameworkBundle\Test\KernelTestCase" not found in /home/vulcans/new-v2/tests/Gestion/Mail/AppMailerTest.php:11 Stack trace: #0 {main} thrown in /home/vulcans/new-v2/tests/Gestion/Mail/AppMailerTest.php on line 11