Fatal error: Uncaught Error: Interface "Drupal\Core\RouteProcessor\OutboundRouteProcessorInterface" not found in /home/www/drupal8/test/core/modules/rest/src/RouteProcessor/RestResourceGetRouteProcessorBC.php:13 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/rest/src/RouteProcessor/RestResourceGetRouteProcessorBC.php on line 13