Npm run dev ends without any error

Issue summary

When running npm run dev nothing happens. It only prints "shopify app dev" and stops without an error

_C:\Projects\sml\shopify-trial\shopify-trial-app>npm run dev

shopify-trial-app@1.0.0 dev C:\Projects\sml\shopify-trial\shopify-trial-app
shopify app dev

C:\Projects\sml\shopify-trial\shopify-trial-app>_

Expected behavior

What do you think should happen?

It should install dependencies and present url like described on
https://shopify.dev/apps/getting-started/create

Actual behavior

What actually happens? Only shopify app dev is printed and process stops without any error

I have installed ngrok and ngrok http 80 us running
i followed instructions on https://shopify.dev/apps/getting-started/create but npm run dev does nothing

ngrok (Ctrl+C to quit) Visit http://localhost:4040/ to inspect, replay, and modify your requests Session Status online Account koen peeters (Plan: Free) Version 3.1.0 Region Europe (eu) Latency 10ms Web Interface http://127.0.0.1:4040 Forwarding https://.eu.ngrok.io -> http://localhost:80 Connections ttl opn rt1 rt5 p50 p90 0 0 0.00 0.00 0.00 0.00

Start with the npm run dev entry point and the shopify app dev command, then compare their behavior with the Shopify getting-started guide linked in the report. Reproduce the command on the reported setup and identify why it exits after printing the command; done means the development process stays running and presents the expected app URL.