Fatal error: Uncaught Error: Interface "Drupal\hal\LinkManager\TypeLinkManagerInterface" not found in /home/www/drupal8/test/core/modules/hal/src/LinkManager/LinkManagerInterface.php:17 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/hal/src/LinkManager/LinkManagerInterface.php on line 17