Fatal error: Uncaught Error: Class 'Illuminate\Validation\ValidationException' not found in D:\xampp\htdocs\datatext_v4\vendor\maatwebsite\excel\src\Validators\ValidationException.php:7 Stack trace: #0 {main} thrown in D:\xampp\htdocs\datatext_v4\vendor\maatwebsite\excel\src\Validators\ValidationException.php on line 7