Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Broadcasting\Factory' not found in D:\Server\aa_work\vendor\laravel\framework\src\Illuminate\Broadcasting\BroadcastManager.php:23 Stack trace: #0 {main} thrown in D:\Server\aa_work\vendor\laravel\framework\src\Illuminate\Broadcasting\BroadcastManager.php on line 23