Angular使用Swiper插件內置方法報錯的問題

<div class="navTab swiper-container" id="nav">
            <ul class="nav-ul swiper-wrapper">
                <li class="nav-item swiper-slide">熱賣熱賣</li>
                <li class="nav-item swiper-slide">水果水果</li>
                <li class="nav-item swiper-slide">蔬菜蔬菜</li>
                <li class="nav-item swiper-slide">乳品乳品</li>
                <li class="nav-item swiper-slide">水產(chǎn)水產(chǎn)</li>
                <li class="nav-item swiper-slide">糧油糧油</li>
            </ul>
        </div>

import { Component, OnInit } from "@angular/core";

declare var $: any;
declare var Swiper: any;

@Component({
    selector: 'navTab',
    templateUrl: './navTab.component.html',
    styleUrls: ['./navTab.component.css']
})
export class navTabComponent implements OnInit {
    constructor() {

    }
    ngOnInit() {
        $('.nav-ul>.nav-item').click(function() {
            var Index = $(this).index();
            $(this).addClass('active').siblings().removeClass('active');
        });
        var mySwiper = new Swiper('#nav', {
            freeMode: true,
            freeModeMomentumRatio: 0.5,
            slidesPerView: 'auto',
        });
//        swiperWidth = mySwiper.container[0].clientWidth;
//        maxTranslate = mySwiper.maxTranslate();
//        maxWidth = -maxTranslate + swiperWidth / 2
//        mySwiper.on('tap', function(swiper, e) {
//            slide = swiper.slides[swiper.clickedIndex];
//            slideLeft = slide.offsetLeft;
//            slideWidth = slide.clientWidth;
//            slideCenter = slideLeft + slideWidth / 2;
//            mySwiper.setWrapperTransition(300)
//            if(slideCenter < swiperWidth / 2) {
//                mySwiper.setWrapperTranslate(0);
//            } else if(slideCenter > maxWidth) {
//                mySwiper.setWrapperTranslate(maxTranslate);
//            } else {
//                nowTlanslate = slideCenter - swiperWidth / 2;
//                mySwiper.setWrapperTranslate(-nowTlanslate);
//            }
//        });
    }
}