Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in D:\NTG_App\www\store_management_system\vendor\maatwebsite\excel\src\ExcelServiceProvider.php:18 Stack trace: #0 {main} thrown in D:\NTG_App\www\store_management_system\vendor\maatwebsite\excel\src\ExcelServiceProvider.php on line 18