Fatal error: Uncaught Error: Interface "Psr\Container\ContainerInterface" not found in /home/galtechstudents/public_html/steffy/Laravel-Intro/example-app/vendor/symfony/service-contracts/ServiceProviderInterface.php:24 Stack trace: #0 {main} thrown in /home/galtechstudents/public_html/steffy/Laravel-Intro/example-app/vendor/symfony/service-contracts/ServiceProviderInterface.php on line 24