Fatal error: Uncaught Error: Class "App\Http\Controllers\DataController" not found in D:\Application\www\E-Tracking\app\Http\Controllers\Admin\plt_bld_sectorController.php:12 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\app\Http\Controllers\Admin\plt_bld_sectorController.php on line 12