Fatal error: Uncaught Error: Class 'yii\db\Migration' not found in /var/www/html/ng-crm/yiiapp/console/migrations/m130524_201442_init.php:6 Stack trace: #0 {main} thrown in /var/www/html/ng-crm/yiiapp/console/migrations/m130524_201442_init.php on line 6