Fatal error: Uncaught Error: Interface "Psr\Container\ContainerInterface" not found in E:\www\frey\qgmvc\v1.0\composer\vendor\symfony\service-contracts\ServiceProviderInterface.php:22 Stack trace: #0 {main} thrown in E:\www\frey\qgmvc\v1.0\composer\vendor\symfony\service-contracts\ServiceProviderInterface.php on line 22