hiqdev / hipanel-module-server

src/menus/DashboardItem.php

<?php
/**
 * Server module for HiPanel
 *
 * @link      https://github.com/hiqdev/hipanel-module-server
 * @package   hipanel-module-server
 * @license   BSD-3-Clause
 * @copyright Copyright (c) 2015-2019, HiQDev (http://hiqdev.com/)
 */

namespace hipanel\modules\server\menus;

use hipanel\modules\dashboard\DashboardInterface;

The type hipanel\modules\dashboard\DashboardInterface was not found. Maybe you did not declare it correctly or list all dependencies?

use Yii;

class DashboardItem extends \hiqdev\yii2\menus\Menu
{
    protected $dashboard;

    public function __construct(DashboardInterface $dashboard, $config = [])
    {
        $this->dashboard = $dashboard;
        parent::__construct($config);
    }

    public function items()
    {
        return [
            'servers' => [
                'label' => $this->render('dashboardItem', $this->dashboard->mget(['totalCount', 'model'])),
                'encode' => false,
                'visible' => Yii::$app->user->can('server.read'),

The method can() does not exist on null.

            ],
        ];
    }
}