Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\xampp\htdocs\snipe-it\database\migrations\2014_11_20_203007_add_username_to_user.php:6 Stack trace: #0 {main} thrown in C:\xampp\htdocs\snipe-it\database\migrations\2014_11_20_203007_add_username_to_user.php on line 6