reactjs - 为什么显示错误 [ react-router-dom@5.2.0 需要 react@>=15 的对等方，但没有安装。您必须自己安装对等依赖项。]

Question

我想显示使用' react-router-dom 的页面'在 react 。
并显示错误

[react-router-dom@5.2.0 requires a peer of react@>=15 but none isinstalled. You must install peer dependencies yourself.].

但我的 react 版本是 "^16.13.1"已经。
package.json

{
  "name": "pra_hook",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^4.2.4",
    "@testing-library/react": "^9.3.2",
    "@testing-library/user-event": "^7.1.2",
    "react": "^16.13.1",
    "react-dom": "^16.13.1",
    "react-scripts": "3.4.1"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

Answer 1

做 [npm install react-router-dom] 并工作