common/config/main.php

<?php
    return [
        'vendorPath' => dirname(dirname(__DIR__)) . '/vendor',
        'components' => [
            'cache'  => [
                'class' => 'yii\caching\FileCache',
            ],
            'i18n'   => [
                'translations' => [
                    'core' => [
                        'class'    => 'yii\i18n\PhpMessageSource',
                        'basePath' => '@artbox/core/messages',
                    ],
                ],
            ],
            'filedb' => [
                'class' => 'yii2tech\filedb\Connection',
                'path'  => '@common/config',
            ],
        ],
    ];