Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\database\migrations\2019_02_20_234421_make_serial_nullable.php:7 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\database\migrations\2019_02_20_234421_make_serial_nullable.php on line 7