创建一个航海网站，在推荐部分，左右控件和指示器没有响应。这是因为我没有在app.js中包含或调用该函数，或者我错过了一些jQuery？ （使用.ejs）
我已经研究了slick-carousel-npm和其他软件包，在简单的HTML和CSS形式中代码也不起作用。
<section class="colouredSection">
<div id="sectionContainer">
<div id="myCarousel" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
<li data-target="#myCarousel" data-slide-to="2"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner">
<div class="item active">
<h2 class="testimonial-text">"What a beautiful day! Our skipper was amazing and even taught us how to sail a bit. I would
definitely recommend and repeat in the future!!! A perfect way to spend an afternoon in Barcelona."</h2>
</div>
<div class="item">
<h2 class="testimonial-text">"What a beautiful day! Our skipper was amazing and even taught us how to sail a bit. I would
definitely recommend and repeat in the future!!! A perfect way to spend an afternoon in Barcelona."</h2>
</div>
<div class="item">
<h2 class="testimonial-text">"What a beautiful day! Our skipper was amazing and even taught us how to sail a bit. I would
definitely recommend and repeat in the future!!! A perfect way to spend an afternoon in Barcelona."</h2>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#myCarousel" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#myCarousel" data-slide="next">
<span class="glyphicon glyphicon-chevron-right"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</section>
<!-- CSS -->
<link rel="stylesheet" href="css/styles.css">
<!-- Font Awesome -->
<script defer src="https://use.fontawesome.com/releases/v5.0.7/js/all.js"></script>
<!-- Google Fonts -->
<link href="https://fonts.googleapis.com/css?family=Montserrat:400,400i,800,800i|Special+Elite|Playfair+Display:400i" rel="stylesheet">
<!-- Bootstrap -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
在app.get（“/”中，我没有提到旋转木马。当我希望它通过航行旅行评论的幻灯片时没有响应。
您需要在utils.js标签中的某处包含bootstrap.js或<body>。
最后，如果您从源代码构建JavaScript，则需要util.js.
https://getbootstrap.com/docs/4.0/components/carousel/
所有Bootstrap的JavaScript文件都依赖于util.js，它必须与其他JavaScript文件一起包含在内。如果你正在使用编译的（或缩小的）bootstrap.js，则不需要包含它 - 它已经存在了。
https://getbootstrap.com/docs/4.0/getting-started/javascript/#util