我在迁移mpvue的项目到uniapp时出现了组件点击事件传递参数失效的问题，请问有人遇到过吗

报错代码如下：
VM27737:1 thirdScriptError
Cannot read property 'resaleFlag' of undefined; [Component] Event Handler Error @ components/business/goodsList#handleEvent
TypeError: Cannot read property 'resaleFlag' of undefined

这是该事件的代码
<div class="goods-item" :class="item.swiper && 'swiper'" v-for="(item,i) in list" :key="item.id+i">
<div class="plus" @click.stop="plus(item)"><i class="iconfont iconadd-o"></i></div>
</div>