Fatal error: Uncaught Error: Class "Illuminate\Support\Manager" not found in C:\wamp64\houda\vendor\laravel\framework\src\Illuminate\Notifications\ChannelManager.php:14 Stack trace: #0 {main} thrown in C:\wamp64\houda\vendor\laravel\framework\src\Illuminate\Notifications\ChannelManager.php on line 14