Fatal error: Uncaught Error: Class "Drupal\Core\Field\FieldException" not found in /home/www/drupal8/test/core/modules/field/src/FieldStorageConfigUpdateForbiddenException.php:10 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/field/src/FieldStorageConfigUpdateForbiddenException.php on line 10