Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\xampp\htdocs\snipe-it\database\migrations\2017_11_08_025918_add_alert_menu_setting.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\snipe-it\database\migrations\2017_11_08_025918_add_alert_menu_setting.php on line 7