Notice: Undefined variable: generator in D:\phpStudy\WWW\Soeasy\vendor\yiisoft\yii2-gii\src\generators\controller\default\controller.php on line 15

Fatal error: Uncaught Error: Call to a member function getControllerNamespace() on unknown in D:\phpStudy\WWW\Soeasy\vendor\yiisoft\yii2-gii\src\generators\controller\default\controller.php:15 Stack trace: #0 {main} thrown in D:\phpStudy\WWW\Soeasy\vendor\yiisoft\yii2-gii\src\generators\controller\default\controller.php on line 15