我的後端/ layout/view/main.php文件如下 請告訴我如何使用kartik-v/yii2-widget-sidenav 我已經安裝此插件作曲家。我是Yii的新手。請幫忙。 我不確定我是在正確的地方使用代碼還是爲什麼會出現此錯誤。我從github頁面複製並粘貼了代碼。Class'kartik sidenav SideNav'找不到
<?php
/* @var $this \yii\web\View */
/* @var $content string */
use backend\assets\AppAsset;
use yii\helpers\Html;
use yii\bootstrap\Nav;
use yii\bootstrap\NavBar;
use yii\widgets\Breadcrumbs;
use common\widgets\Alert;
//use kartik\widgets\SideNav;
use kartik\sidenav\SideNav;
//use yii\helpers\Url;
AppAsset::register($this);
?>
<?php $this->beginPage() ?>
<!DOCTYPE html>
<html lang="<?= Yii::$app->language ?>">
<head>
<meta charset="<?= Yii::$app->charset ?>">
<meta name="viewport" content="width=device-width, initial-scale=1">
<?= Html::csrfMetaTags() ?>
<title><?= Html::encode($this->title) ?></title>
<?php $this->head() ?>
</head>
<body>
<?php $this->beginBody() ?>
<?= SideNav::widget([
'type' => SideNav::TYPE_DEFAULT,
'heading' => 'Options',
'items' => [
[
'url' => '#',
'label' => 'Home',
'icon' => 'home'
],
[
'label' => 'Help',
'icon' => 'question-sign',
'items' => [
['label' => 'About', 'icon'=>'info-sign', 'url'=>'#'],
['label' => 'Contact', 'icon'=>'phone', 'url'=>'#'],
],
],
],
]);
?>
<div class="wrap">
<?php
NavBar::begin([
'brandLabel' => 'My Company',
'brandUrl' => Yii::$app->homeUrl,
'options' => [
'class' => 'navbar-inverse navbar-fixed-top',
],
]);
$menuItems = [
['label' => 'Home', 'url' => ['/site/index']],
];
if (Yii::$app->user->isGuest) {
$menuItems[] = ['label' => 'Login', 'url' => ['/site/login']];
} else {
$menuItems[] = [
'label' => 'Logout (' . Yii::$app->user->identity->username . ')',
'url' => ['/site/logout'],
'linkOptions' => ['data-method' => 'post']
];
}
echo Nav::widget([
'options' => ['class' => 'navbar-nav navbar-right'],
'items' => $menuItems,
]);
NavBar::end();
?>
<div class="container">
<?= Breadcrumbs::widget([
'links' => isset($this->params['breadcrumbs']) ? $this->params['breadcrumbs'] : [],
]) ?>
<?= Alert::widget() ?>
<?= $content ?>
</div>
</div>
<footer class="footer">
<div class="container">
<p class="pull-left">© My Company <?= date('Y') ?></p>
<p class="pull-right"><?= Yii::powered() ?></p>
</div>
</footer>
<?php $this->endBody() ?>
</body>
</html>
<?php $this->endPage() ?>
找出如何安裝卡爾蒂克這裏的小工具 [http://stackoverflow.com/questions/35384920/include-additional-library-to-yii2/35388744#35388744](http://stackoverflow.com/questions/35384920/include-additional-library-to-yii2/ 35388744#35388744) –