Edit file File name : package.json Content :{ "name": "devTemplate", "version": "1.0.0", "main": "assets/main.js", "repository": "https://github.com/obiwan00/webpackTemplate2.git", "author": "MIG", "license": "MIT", "scripts": { "build:dev": "webpack --mode=development --config webpack.config.js", "watch": "yarn build:dev --watch", "build": "webpack --mode=production --config webpack.config.js" }, "devDependencies": { "@babel/cli": "^7.8.4", "@babel/core": "^7.9.0", "@babel/preset-env": "^7.9.0", "babel-loader": "^8.1.0", "bable-loader": "^0.0.1-security", "copy-webpack-plugin": "^5.1.1", "css-loader": "^5.0.1", "file-loader": "^6.0.0", "mini-css-extract-plugin": "^0.9.0", "node-sass": "^4.13.1", "postcss-loader": "^3.0.0", "sass-loader": "^8.0.2", "webpack": "^4.42.1", "webpack-cli": "^3.3.11", "style-loader": "^2.0.0" }, "dependencies": { } }Save