// package.json
...
"scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node ./src/index.js"		// add this line
 },
 ...
	// package.json
	...
	"scripts": {
	"test": "echo \"Error: no test specified\" && exit 1",
	"start": "node ./src/index.js" // add this line
	},
	...