I have just follows this tutorial https://www.youtube.com/watch?v=pq2u3FqVVy8. I use npx to generate the documentation. It is work, but after I run npx serve. The localhost:5000 shows the error. Maybe this is a bug ? May you help to resolve this issue? Thanks

Note : The picture below is the the http://localhost:5000/insomnia.json opened in browser
