Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Auth\UserProvider" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\laravel\passport\src\PassportUserProvider.php:8 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\laravel\passport\src\PassportUserProvider.php on line 8