# Problems running app in Homey

**URL:** <https://community.homey.app/t/problems-running-app-in-homey/37747>\
**Category:** Questions & Help\
**Tags:** app\
**Created:** [November 22, 2020, 2:02pm UTC](https://community.homey.app/t/problems-running-app-in-homey/37747 "2020-11-22T14:02:15Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![fanks](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fanks/32/29862_2.png) [@fanks](https://community.homey.app/u/fanks)\
**Post date:** [November 22, 2020, 2:02pm UTC](https://community.homey.app/t/problems-running-app-in-homey/37747/1 "2020-11-22T14:02:15Z")

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Hi! I’m trying to create my Homey app and follwing [these instructions](https://apps-sdk-v3.developer.athom.com/tutorial-Getting%20Started.html):

When running `homey app run` I get this error:

```
✓ Pre-processing app...
✓ Running plugins...
✓ Running plugin `compose`...
✓ Plugin `compose` finished
✓ Validating app...
✓ Homey App validated successfully against level `debug`
✓ Packing Homey App...
✓ Pruning dev dependencies...
— App size: 126.5 KB
✓ Installing Homey App on `Magnus's Homey Pro` (https://192-168-50-64.homey.homeylocal.com)...
✖ Ett okänt fel har inträffat [incompatible_app_version]

```

I’m using a Homey pro (v5.0.0-rc.38) and node version 14.13.

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<div class="post-metadata">

**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [November 22, 2020, 2:14pm UTC](https://community.homey.app/t/problems-running-app-in-homey/37747/2 "2020-11-22T14:14:32Z")

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What values do you use for `compatibility` and `sdk` in `app.json`?

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<div class="post-metadata">

**Author:** ![fanks](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fanks/32/29862_2.png) [@fanks](https://community.homey.app/u/fanks)\
**Post date:** [November 22, 2020, 4:24pm UTC](https://community.homey.app/t/problems-running-app-in-homey/37747/3 "2020-11-22T16:24:08Z")

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```
  "compatibility": ">=5.0.0",
  "sdk": 3,
```

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<div class="post-metadata">

**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [November 22, 2020, 6:07pm UTC](https://community.homey.app/t/problems-running-app-in-homey/37747/4 "2020-11-22T18:07:42Z")

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The error suggests that either your Homey isn’t running v5, or there’s something wrong with your `app.json`.

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<div class="post-metadata">

**Author:** ![fanks](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fanks/32/29862_2.png) [@fanks](https://community.homey.app/u/fanks)\
**Post date:** [November 26, 2020, 5:59pm UTC](https://community.homey.app/t/problems-running-app-in-homey/37747/5 "2020-11-26T17:59:46Z")

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Thank you - you are right. It wasn’t running v5… I got confused when looking at the firmware section and saw v5 on top and thought that was installed.