Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\xampp\htdocs\database\migrations\2018_04_28_021651_alter_shoutbox_table.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\database\migrations\2018_04_28_021651_alter_shoutbox_table.php on line 21