Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException" not found in /home/www/drupal8/test/core/lib/Drupal/Core/Http/Exception/CacheableMethodNotAllowedHttpException.php:12
Stack trace:
#0 {main}
thrown in /home/www/drupal8/test/core/lib/Drupal/Core/Http/Exception/CacheableMethodNotAllowedHttpException.php on line 12