Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/demohost/hospital.demohost.in/database/migrations/2023_01_27_113441_add_reference_no_field_at_ipd_operation_table.php:7 Stack trace: #0 {main} thrown in /home/demohost/hospital.demohost.in/database/migrations/2023_01_27_113441_add_reference_no_field_at_ipd_operation_table.php on line 7