npm run dev error (Laravel Mix Error)

copy dòng code

{
	"private": true,
	"scripts": {
	"dev": "npm run development",
	"development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
	"watch": "npm run development -- --watch",
	"watch-poll": "npm run watch -- --watch-poll",
	"hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
	"prod": "npm run production",
	"production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
	},
	"devDependencies": {
	"axios": "^0.18",
	"bootstrap": "^4.0.0",
	"popper.js": "^1.12",
	"cross-env": "^5.1",
	"jquery": "^3.2",
	"laravel-mix": "^2.0",
	"lodash": "^4.17.4",
	"vue": "^2.5.7"
	}
	}

cho vào file package.json
hoặc vào https://github.com/laravel/laravel/blob/master/package.json