TypeError：(0，Rt.useState)不是函数

Question

在将标记为副本之前，我搜索了很多次，但没有回答。

我在做一个反应项目。在开发环境中，一切都很正常。然后，当我构建react时，浏览器中会出现以下错误：

TypeError: (0 , Rt.useState) is not a function at react-dom.production.min.js:209

在网上我搜索了很多。每个人都会参考没有钩子的16.7版本。不过，我有16.14版本！看一看依赖关系：

{
  "qs": "^6.10.2",
  "react": "^16.14.0",
  "react-content-loader": "^6.1.0",
  "react-dom": "^16.14.0",
  "react-intersection-observer": "^8.33.1",
  "react-qr-reader": "^2.2.1",
  "react-router-dom": "^5.3.0",
  "react-scripts": "5.0.0",
  "react-swipeable-list": "^1.4.0",
  "react-tiger-transition": "^4.1.2",
  "react-toastify": "^8.1.0",
  "react-transition-group": "^4.3.0"
}

我已经检查过是否有重复的反应。我用了npm ls react和npm ls react-dom

以下是这两种方法的结果：

> npm ls react

+-- react-content-loader@6.1.0
| `-- react@16.14.0 deduped
+-- react-dom@16.14.0
| `-- react@16.14.0 deduped
+-- react-intersection-observer@8.33.1
| `-- react@16.14.0 deduped
+-- react-qr-reader@2.2.1
| `-- react@16.14.0 deduped
+-- react-router-dom@5.3.0
| +-- react-router@5.2.1
| | +-- mini-create-react-context@0.4.1
| | | `-- react@16.14.0 deduped
| | `-- react@16.14.0 deduped
| `-- react@16.14.0 deduped
+-- react-scripts@5.0.0
| `-- react@16.14.0 deduped
+-- react-swipeable-list@1.4.0
| `-- react@16.14.0 deduped
+-- react-tiger-transition@4.1.2
| `-- react@16.14.0 deduped
+-- react-toastify@8.1.0
| `-- react@16.14.0 deduped
+-- react-transition-group@4.4.2
| `-- react@16.14.0 deduped
`-- react@16.14.0

另一个是：

> npm ls react-dom

+-- react-dom@16.14.0
+-- react-qr-reader@2.2.1
| `-- react-dom@16.14.0 deduped
+-- react-swipeable-list@1.4.0
| `-- react-dom@16.14.0 deduped
+-- react-toastify@8.1.0
| `-- react-dom@16.14.0 deduped
`-- react-transition-group@4.4.2
  `-- react-dom@16.14.0 deduped

因此，我们可以说，没有复制！

语法可能是正确的，因为它在开发中工作得很好。

我真的很困惑。谢谢。

Answer 1

#解决了问题，因为vs代码intellisense自动添加了以下内容：

import { useState } from 'react/cjs/react.development.js'

而不是

import { useState } from 'react'

为了找到它杀了我