Fatal error: Uncaught Error: Interface "Symfony\Component\HttpKernel\HttpKernelInterface" not found in /home/www/drupal8/test/core/lib/Drupal/Core/DrupalKernelInterface.php:15
Stack trace:
#0 {main}
thrown in /home/www/drupal8/test/core/lib/Drupal/Core/DrupalKernelInterface.php on line 15