Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\laragon\www\ujian-online\database\migrations\2026_04_23_000007_create_exam_results_table.php:7 Stack trace: #0 {main} thrown in C:\laragon\www\ujian-online\database\migrations\2026_04_23_000007_create_exam_results_table.php on line 7