Fatal error: Uncaught Error: Class "Drupal\Core\StreamWrapper\LocalStream" not found in /home/www/drupal8/test/core/modules/locale/src/StreamWrapper/TranslationsStream.php:13 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/locale/src/StreamWrapper/TranslationsStream.php on line 13