Fatal error: Uncaught Error: Class "Illuminate\Notifications\Messages\SimpleMessage" not found in C:\www\Apache24\htdocs\agenda-dif\vendor\laravel\framework\src\Illuminate\Notifications\Messages\MailMessage.php:13 Stack trace: #0 {main} thrown in C:\www\Apache24\htdocs\agenda-dif\vendor\laravel\framework\src\Illuminate\Notifications\Messages\MailMessage.php on line 13