Fatal error: Uncaught Error: Interface "Illuminate\Validation\DatabasePresenceVerifierInterface" not found in D:\Apache24\www\api.print.nxytec.cn\back\vendor\laravel\framework\src\Illuminate\Validation\DatabasePresenceVerifier.php:9 Stack trace: #0 {main} thrown in D:\Apache24\www\api.print.nxytec.cn\back\vendor\laravel\framework\src\Illuminate\Validation\DatabasePresenceVerifier.php on line 9