Fatal error: Uncaught Error: Interface "Psr\Container\ContainerExceptionInterface" not found in C:\xampp\htdocs\adminlte3\vendor\psr\container\src\NotFoundExceptionInterface 2.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\adminlte3\vendor\psr\container\src\NotFoundExceptionInterface 2.php on line 8