Fatal error: Uncaught Error: Interface 'Application\Generic\Hydrator\Strategy\HydratorInterface' not found in /var/www/html/php7cookbook/source/Application/Generic/Hydrator/Strategy/Extending.php:8 Stack trace: #0 {main} thrown in /var/www/html/php7cookbook/source/Application/Generic/Hydrator/Strategy/Extending.php on line 8