# Testing a homey app without homey pro

**URL:** <https://community.homey.app/t/testing-a-homey-app-without-homey-pro/107497>\
**Category:** Developers\
**Tags:** homey-pro\
**Created:** [April 1, 2024, 7:27pm UTC](https://community.homey.app/t/testing-a-homey-app-without-homey-pro/107497 "2024-04-01T19:27:47Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**Author:** ![D3X](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/d3x/32/114780_2.png) [@D3X](https://community.homey.app/u/D3X)\
**Post date:** [October 4, 2024, 12:21am UTC](https://community.homey.app/t/testing-a-homey-app-without-homey-pro/107497/22 "2024-10-04T00:21:15Z")

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I experience the very same.  
basically a normal starting-app. minor modifications, but no removed files or similar  
trying to app.run ends up with the error

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/5/b56da7b318f5357d03cda6685de5979fc703ed53.png)

I run on Windows, but in a dev-container.  
Docker is passed through to the dev-container. So its using the hosts docker.

Did you resolve it @s_dimaio ?

Edit: i extracted my problem into a separate thread:

> [@App.json not found](https://community.homey.app/t/app-json-not-found/117317):
>
> I experience a strange error. Basically a normal starting-app. minor modifications, but no removed files or similar. Even tried the same with a completely blank app. Same error. Trying to app.run ends up with the error. I run on Windows, but in a dev-container based on debian. I own a Homey Pro and have it standing next to me. Its in the same network, what doesnt seem to matter too much. Anyone got ideas or troubleshooting steps?

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