Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /var/www/html/cps/database/migrations/2020_07_14_112443_add_auto_completed_unit_no.php:7 Stack trace: #0 {main} thrown in /var/www/html/cps/database/migrations/2020_07_14_112443_add_auto_completed_unit_no.php on line 7