Fatal error: Uncaught Error: Class 'Drupal\Core\Field\FormatterBase' not found in /var/www/html/tmp/contrib/rest_views/src/Plugin/Field/FieldFormatter/BooleanExportFormatter.php:20 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/rest_views/src/Plugin/Field/FieldFormatter/BooleanExportFormatter.php on line 20