Fatal error: Uncaught Error: Class "Illuminate\Mail\Transport\Transport" not found in E:\xampp\htdocs\stms\vendor\laravel\framework\src\Illuminate\Mail\Transport\MailgunTransport.php:10 Stack trace: #0 {main} thrown in E:\xampp\htdocs\stms\vendor\laravel\framework\src\Illuminate\Mail\Transport\MailgunTransport.php on line 10