ak-frontend/common/config/bootstrap.php

<?php
//路径分隔符
define('__DS__' ,DIRECTORY_SEPARATOR);

Yii::setAlias('@common', dirname(__DIR__));
Yii::setAlias('@frontend', dirname(dirname(__DIR__)) . '/frontend');
Yii::setAlias('@frontendApi', dirname(dirname(__DIR__)) . '/frontendApi');
Yii::setAlias('@console', dirname(dirname(__DIR__)) . '/console');