'react' - 在 运行 npm start 之后它给出 ./src/index.js 模块未找到:无法在 'C:\Users\...\src' 错误中解决 'react'

'react' - After run npm start it gives ./src/index.js Module not found: Can't resolve 'react' in 'C:\Users\...\src' error

在 运行

之后的 reactJs 中

npm start

它给出

./src/index.js Module not found: Can't resolve 'react' in 'C:\Users...\src'

错误。

这是我的package.js

{
  "name": "client-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@aspnet/signalr": "^1.0.4",
    "react": "^16.5.2",
    "react-dom": "^16.5.2",
    "react-scripts": "^1.1.5"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  }
}

尝试删除 package-lock.json、运行 npm install,然后再次删除 运行 npm start