Fatal error: Uncaught Error: Class "Illuminate\Database\Connection" not found in D:\Apache24\www\sx.nxytec.cn\xiansheng-api\vendor\laravel\framework\src\Illuminate\Database\PostgresConnection.php:16 Stack trace: #0 {main} thrown in D:\Apache24\www\sx.nxytec.cn\xiansheng-api\vendor\laravel\framework\src\Illuminate\Database\PostgresConnection.php on line 16