Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/shikkhaplus/public_html/app/Http/Controllers/ums/register/CoursePrerequisiteController.php:23 Stack trace: #0 {main} thrown in /home/shikkhaplus/public_html/app/Http/Controllers/ums/register/CoursePrerequisiteController.php on line 23