Create a directory into your local for windows mkdir react-demo for linux mkdir react-demo Go to directory cd react-demo Type npm init for installing node and creating package.json file npm i webpack --save-dev create dependency by webpack npm i webpack-cli --save-dev This cmd is used to create dependency for webpack-cli in package.json file. Like - "devDependencies": { "webpack": "^4.16.2", "webpack-cli": "^3.1.0" } npm install -D babel-loader @babel/core @babel/preset-env webpack "devDependencies": { "babel-core": "^6.26.3", "babel-loader": "^7.1.5", "babel-preset-env": "^1.7.0", "webpack": "^4.16.2", "webpack-cli":