Fatal error: Uncaught Error: Interface "Psr\Container\ContainerInterface" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\dependency-injection\ParameterBag\ContainerBagInterface.php:22 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\dependency-injection\ParameterBag\ContainerBagInterface.php on line 22