Reactjs React 16.2.0显示错误“；无法读取属性'；ReactCurrentOwner'；“未定义”的定义；

我在用react@15.6.2但当时正在尝试更新到16.2.0

我已删除node_modules文件夹，然后执行

npm cache clean

和

npm install

但是，控制台会一直显示此消息

未满足的对等依赖react@15.6.2无效

在我运行webpack服务器后，浏览器只会抛出一条错误消息：

无法读取未定义的属性“ReactCurrentOwner”

为什么会发生这种情况

以下是my package.json的外观：

  "devDependencies": {
    "autoprefixer": "^6.3.6",
    "babel-core": "^6.8.0",
    "babel-loader": "^6.2.4",
    "babel-plugin-transform-class-properties": "^6.8.0",
    "babel-plugin-transform-runtime": "^6.8.0",
    "babel-preset-es2015": "^6.6.0",
    "babel-preset-react": "^6.5.0",
    "babel-preset-stage-0": "^6.5.0",
    "css-loader": "^0.23.1",
    "eslint": "^2.9.0",
    "eslint-config-airbnb": "^9.0.1",
    "eslint-plugin-import": "^1.8.0",
    "eslint-plugin-jsx-a11y": "^1.2.0",
    "eslint-plugin-react": "^5.1.1",
    "extract-text-webpack-plugin": "^1.0.1",
    "file-loader": "^0.8.5",
    "firebase": "^4.13.0",
    "history": "^4.7.2",
    "html-webpack-plugin": "^2.16.1",
    "install": "^0.11.0",
    "less": "^2.7.1",
    "less-loader": "^2.2.3",
    "open-browser-webpack-plugin": "0.0.2",
    "postcss-loader": "^2.1.4",
    "react": "^16.2.0",
    "react-dom": "^16.2.0",
    "react-icons": "^2.2.7",
    "react-route": "^1.0.3",
    "react-router-dom": "^4.2.2",
    "rimraf": "^2.5.2",
    "style-loader": "^0.13.1",
    "styled-components": "^3.2.3",
    "url-loader": "^0.5.7",
    "webpack": "^1.13.0",
    "webpack-dev-server": "^1.14.1"
  }

---

我刚刚解决了这个问题

困扰我的是，即使删除node_modules文件夹，包的版本也会保持不变（旧版本）。我仍然不知道为什么

因此，我卸载了

react

和

react dom

，因为

npm ls react

的错误消息表明：

npm错误！缺少对等dep:react@^16.0.0，react需要-dom@16.2.0

---

在通过执行

npm install重新安装它们之后react@16.2.0

和

npm安装响应-dom@16.2.0

，浏览器的错误消息消失！：）

了解什么取决于v15

npm ls react