Fatal error: Uncaught Error: Class "Illuminate\Support\Manager" not found in C:\xampp\htdocs\desarrollos\Pruebas\lpt-pkg-demo-pwa\vendor\laravel\framework\src\Illuminate\Notifications\ChannelManager.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\desarrollos\Pruebas\lpt-pkg-demo-pwa\vendor\laravel\framework\src\Illuminate\Notifications\ChannelManager.php on line 12