Fatal error: Uncaught Error: Class "Illuminate\Broadcasting\BroadcastEvent" not found in A:\risk_server\project\hr-server\vendor\laravel\framework\src\Illuminate\Broadcasting\UniqueBroadcastEvent.php:9 Stack trace: #0 {main} thrown in A:\risk_server\project\hr-server\vendor\laravel\framework\src\Illuminate\Broadcasting\UniqueBroadcastEvent.php on line 9