Fatal error: Uncaught Error: Class "Drupal\migrate\Plugin\Migration" not found in /home/www/drupal8/test/core/modules/node/src/Plugin/migrate/D7NodeTranslation.php:11 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/node/src/Plugin/migrate/D7NodeTranslation.php on line 11