'app-backend', 'basePath' => dirname(__DIR__), 'controllerNamespace' => 'backend\controllers', 'defaultRoute' => 'site/index', 'bootstrap' => ['log'], 'modules' => [], 'components' => [ 'user' => [ 'identityClass' => 'common\models\User', 'enableAutoLogin' => true, ], 'log' => [ 'traceLevel' => YII_DEBUG ? 3 : 0, 'targets' => [ [ 'class' => 'yii\log\FileTarget', 'levels' => ['error', 'warning'], ], ], ], 'errorHandler' => [ 'errorAction' => 'site/error', ], ], 'params' => $params, ];