webpack和webpack-dev-server版本兼容，亲测有效
{
"name": "react",
"version": "1.0.0",
"description": "",
"main": "",
"scripts": {
"build": "webpack --config ",
"start": "webpack-dev-server --config --color --progress"
},
"author": "",
"license": "ISC",
"devDependencies": {
"babel-core": "^6.26.3",
"babel-loader": "^7.1.5",
"babel-preset-env": "^1.7.0",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"babel-preset-stage-0": "^6.24.1",
"webpack": "^3.10.0",
"webpack-dev-server": "^2.9.7"
},
"dependencies": {
"react": "^16.5.2",
"react-dom": "^16.5.2",
"react-router-dom": "^4.3.1"
}
}