Yii2小部件不显示/不再起作用

Question

我只是在Yii2应用程序中安装了2amigos CKEditor和日期选择器。安装成功，我将代码添加到表单中并刷新页面，但未显示CKEditor和日期选择器。 CKEditor显示为文本区域表单。

这是我的package.json：

{
"name": "yiisoft/yii2-app-advanced",
"description": "Yii 2 Advanced Project Template",
"keywords": ["yii2", "framework", "advanced", "project template"],
"homepage": "http://www.yiiframework.com/",
"type": "project",
"license": "BSD-3-Clause",
"support": {
    "issues": "https://github.com/yiisoft/yii2/issues?state=open",
    "forum": "http://www.yiiframework.com/forum/",
    "wiki": "http://www.yiiframework.com/wiki/",
    "irc": "irc://irc.freenode.net/yii",
    "source": "https://github.com/yiisoft/yii2"
},
"minimum-stability": "stable",
"require": {
    "php": ">=5.4.0",
    "yiisoft/yii2": "~2.0.14",
    "yiisoft/yii2-bootstrap": "~2.0.0",
    "yiisoft/yii2-swiftmailer": "~2.0.0 || ~2.1.0",
    "2amigos/yii2-date-picker-widget": "~1.0",
    "2amigos/yii2-date-time-picker-widget": "~1.0",
    "kartik-v/yii2-helpers": "*",
    "yiidoc/yii2-redactor": "*",
    "mihaildev/yii2-ckeditor": "*",
    "kartik-v/yii2-widget-sidenav": "*",
    "2amigos/yii2-ckeditor-widget": "*"
},
"require-dev": {
    "yiisoft/yii2-debug": "~2.1.0",
    "yiisoft/yii2-gii": "~2.1.0",
    "yiisoft/yii2-faker": "~2.0.0",
    "codeception/base": "^2.4.0",
    "phpunit/phpunit": "~6.5.5",
    "codeception/verify": "~1.0.0",
    "symfony/browser-kit": ">=2.7 <=4.2.4"
},
"config": {
    "process-timeout": 1800,
    "fxp-asset": {
        "enabled": false
    }
},
"repositories": [
    {
        "type": "composer",
        "url": "https://asset-packagist.org"
    }
]

}

这是我的表格：

<?php

use yii\helpers\Html;
use yii\widgets\ActiveForm;
use dosamigos\ckeditor\CKEditor;

/* @var $this yii\web\View */
/* @var $model frontend\models\LayananM */
/* @var $form yii\widgets\ActiveForm */
?>

<div class="layanan-m-form">

    <?= $form->field($model, 'description')->widget(CKEditor::className(), [
        'options' => ['rows' => 6],
        'preset' => 'basic'
    ]) ?>

    <div class="form-group">
        <?= Html::submitButton(Yii::t('app', 'Save'), ['class' => 'btn btn-success']) ?>
    </div>

    <?php ActiveForm::end(); ?>

</div>

代码有什么问题？