移动端微信小程序开发学习报错记录--toast.js:41 未找到 van-toast 节点，请确认 selector 及 context 是否正确

这个问题仔细检查了一下代码引入，是没有问题的，

根本原因是在页面上忘了加<van-toast id="van-toast" />

具体引入代码如下：

app.json

 "usingComponents": {
        "tab-bar": "custom-tab-bar/index",
        "van-icon": "@vant/weapp/icon/index",
        "van-tab": "@vant/weapp/tab/index",
        "van-toast": "@vant/weapp/toast/index", // 这一个哦，其他的是其他组件
        "van-field": "@vant/weapp/field/index",
        "van-popup": "@vant/weapp/popup/index",
        "van-collapse": "@vant/weapp/collapse/index",
        "van-collapse-item": "@vant/weapp/collapse-item/index",
        "van-tabs": "@vant/weapp/tabs/index",
        "van-picker": "@vant/weapp/picker/index",
        "van-cell": "@vant/weapp/cell/index",
        "van-cell-group": "@vant/weapp/cell-group/index",
        "van-calendar": "@vant/weapp/calendar/index",
        "van-button": "@vant/weapp/button/index",
        "van-datetime-picker": "@vant/weapp/datetime-picker/index"
    },

HTML

<van-toast id="van-toast" />

JS：

import Toast from '../../miniprogram_npm/@vant/weapp/toast/toast.js';
Toast('我是提示文案，建议不超过十五字~');