Fatal error: Class 'Drupal\file\Plugin\Field\FieldType\FileUriItem' not found in /home/users/deploy/voilebp/releases/20180306205520_49e4351af9d016cd02c6a82f4e09fa5c50f588b0/html/core/lib/Drupal/Core/Field/BaseFieldDefinition.php on line 723