information.html:84未捕获引用错误：刷卡器未在information中定义。怎么解决

information.html:84未捕获引用错误：刷卡器未在information中定义。html:84

<script>
        var swiper = new Swiper('.swiper-container', {
          slidesPerView: 1,
          centeredSlides: true,
          spaceBetween: 30,
          grabCursor: true,
          pagination: {
            el: '.nav',
            clickable: true,
          },
        });
    </script>

需要引入一个JS文件上百度搜一个下来放进文档里就可以了