React Webpack Utils Error

Question

运行npm start时，我收到此错误

找不到模块"react dev-utils/WebpackDevServerUtils">

我甚至尝试过删除和重新安装。有什么帮助吗？这是包.json

{
"name": "tic-tac-toe-app",
"version": "0.1.0",
"private": true,
"dependencies": {
"react": "^16.4.1",
"react-dom": "^16.4.1",
"react-router": "^4.3.1",
"react-router-dom": "^4.3.1",
"react-scripts": "1.1.4",
"webpack": "^4.15.1"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test --env=jsdom",
"eject": "react-scripts eject"
},
"devDependencies": {
"react-dev-utils": "^5.0.1",
"react-scripts": "^1.1.4",
"webpack": "^1.15.0",
"webpack-cli": "^3.0.8",
"webpack-command": "^0.4.1",
"webpack-dev-server": "^3.1.4"
}
}

Answer 1

删除项目中的"node_modules"文件夹

然后再次运行npm install