Fatal error: Uncaught Error: Interface "Drupal\webform\Commands\WebformCliServiceInterface" not found in /home/www/drupal8/test/modules/webform/src/Commands/WebformCliService.php:21 Stack trace: #0 {main} thrown in /home/www/drupal8/test/modules/webform/src/Commands/WebformCliService.php on line 21