---
title: Cannot read property 'Icon' of Undefined
sidebar_position: 16
tags: [FAQ]
---
@alifd/next 是 React 画布下必须的资源，不能省略。
需要在资产包中检查是否有下列代码：
```typescript
{
  "title": "fusion 组件库",
  "package": "@alifd/next",
  "version": "1.23.0",
  "urls": [
    "https://g.alicdn.com/code/lib/alifd__next/1.23.18/next.min.css",
    "https://g.alicdn.com/code/lib/alifd__next/1.23.18/next-with-locales.min.js"
  ],
  "library": "Next"
},
```