Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /home/flexinettek/public_html/database/migrations/2019_12_19_181412_make_alert_quantity_field_nullable_on_products_table.php:6 Stack trace: #0 {main} thrown in /home/flexinettek/public_html/database/migrations/2019_12_19_181412_make_alert_quantity_field_nullable_on_products_table.php on line 6