Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Mail\Mailer" not found in D:\Application\www\E-Tracking\vendor\laravel\framework\src\Illuminate\Support\Testing\Fakes\MailFake.php:11 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\laravel\framework\src\Illuminate\Support\Testing\Fakes\MailFake.php on line 11