Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Kernel" not found in /home/zdpktgd/ptc/vendor.old/doctrine/doctrine-bundle/tests/DependencyInjection/Fixtures/TestKernel.php:21 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/doctrine/doctrine-bundle/tests/DependencyInjection/Fixtures/TestKernel.php on line 21