Fatal error: Uncaught Error: Interface "Psr\Container\ContainerInterface" not found in D:\Apache24\www\api.print.nxytec.cn\back\vendor\laravel\framework\src\Illuminate\Contracts\Container\Container.php:8 Stack trace: #0 {main} thrown in D:\Apache24\www\api.print.nxytec.cn\back\vendor\laravel\framework\src\Illuminate\Contracts\Container\Container.php on line 8