Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in C:\xampp\htdocs\secondary_sales1\database\migrations\2021_03_23_123435_create_orders_table.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\secondary_sales1\database\migrations\2021_03_23_123435_create_orders_table.php on line 7