Fatal error: Uncaught Error: Class "Illuminate\Foundation\Application" not found in C:\xampp\htdocs\OneUI 5.12\03 OneUI Source (Laravel Starter Kit)\bootstrap\app.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\OneUI 5.12\03 OneUI Source (Laravel Starter Kit)\bootstrap\app.php on line 7