Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Kernel' not found in /home/cooplafobq/newplanning/vendor/knpuniversity/oauth2-client-bundle/tests/app/TestKernel.php:21 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/knpuniversity/oauth2-client-bundle/tests/app/TestKernel.php on line 21