Webpack问题解决:Can't resolve 'react'

很简单 node_modules 里面没有react库

#这是Package.json文件
{
"name": "react",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"build": "webpack --config build/webpack.config.js"
},
"author": "",
"license": "ISC",
"dependencies": {
"react": "^16.2.0",
"react-dom": "^16.2.0"
},
"devDependencies": {
"webpack": "^3.10.0",
"babel-core": "^6.26.0",
"babel-loader": "^7.1.2",
"babel-preset-es2015": "^6.24.1",
"babel-preset-es2015-loose": "^8.0.0",
"babel-preset-react": "^6.24.1",
"html-webpack-plugin": "^2.30.1"
}
}

##把node_modules 文件夹删除,重新安装一下就行了

npm install