Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\app\Http\Controllers\ApiCourseDownloadController.php:11 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\app\Http\Controllers\ApiCourseDownloadController.php on line 11