Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in E:\Ampps\www\CAS\database\migrations\2019_12_09_135147_add_ref_no_to_sales_table.php:0 Stack trace: #0 {main} thrown in E:\Ampps\www\CAS\database\migrations\2019_12_09_135147_add_ref_no_to_sales_table.php on line 0