Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\xampp\htdocs\snipe-it\database\migrations\2016_08_30_084634_make_purchase_cost_nullable.php:6 Stack trace: #0 {main} thrown in C:\xampp\htdocs\snipe-it\database\migrations\2016_08_30_084634_make_purchase_cost_nullable.php on line 6