Fatal error: Uncaught Error: Class 'yii\db\Migration' not found in /home/wittyly/public_html/live/hr-witty/migrations/m190701_080554_create_table_request_schedule.php:5
Stack trace:
#0 {main}
thrown in /home/wittyly/public_html/live/hr-witty/migrations/m190701_080554_create_table_request_schedule.php on line 5