Udacity-c2-restapi exercise "npm run dev" issue

[alexisselorm]

I have an issue running npm run dev in the udacity-c2-restapi exercise to follow along with the lesson. After filling in my details in the dev object and running npm run dev, the server just runs and closes with no output

[fedirjh]

this is a duplication of #464
upgrading packages to latest version + updating Models will fix this issue