Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /home/shiftict/public_html/eventech/database/migrations/2020_04_13_113048_add_parent_relation_to_units.php:7 Stack trace: #0 {main} thrown in /home/shiftict/public_html/eventech/database/migrations/2020_04_13_113048_add_parent_relation_to_units.php on line 7