Notice: Undefined variable: generator in /mnt/www/service_center/vendor/yiisoft/yii2-gii/generators/controller/default/view.php on line 15

Fatal error: Uncaught Error: Call to a member function getControllerID() on null in /mnt/www/service_center/vendor/yiisoft/yii2-gii/generators/controller/default/view.php:15 Stack trace: #0 {main} thrown in /mnt/www/service_center/vendor/yiisoft/yii2-gii/generators/controller/default/view.php on line 15