Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in E:\xampp\htdocs\www\yunwei\qr250\database\migrations\2020_09_22_015815_create_admin_extensions_table.php:7 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr250\database\migrations\2020_09_22_015815_create_admin_extensions_table.php on line 7