Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /home/flexinettek/public_html/database/migrations/2018_05_21_131607_invoice_layout_fields_for_sell_return.php:7 Stack trace: #0 {main} thrown in /home/flexinettek/public_html/database/migrations/2018_05_21_131607_invoice_layout_fields_for_sell_return.php on line 7