# docker-compose - exec format error

**URL:** <https://forums.balena.io/t/docker-compose-exec-format-error/358387>\
**Category:** openBalena\
**Tags:** raspberrypi3, docker, docker-compose\
**Created:** [May 31, 2022, 8:26pm UTC](https://forums.balena.io/t/docker-compose-exec-format-error/358387 "2022-05-31T20:26:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![RonaldGuilhermePDS](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/ronaldguilhermepds/32/8006_2.png) [@RonaldGuilhermePDS](https://forums.balena.io/u/RonaldGuilhermePDS)\
**Post date:** [May 31, 2022, 8:26pm UTC](https://forums.balena.io/t/docker-compose-exec-format-error/358387/1 "2022-05-31T20:26:10Z")

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Hey there!  
I’m running raspbian os on a raspberry pi 3 and following the openBalena documentation I came across the following error:

 ![image](https://global.discourse-cdn.com/balena/original/2X/0/0e9f29f1cf240f71bdd47749356043bc9c3a83bd.png)

how to proceed?

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**Author:** ![nmaas87](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/nmaas87/32/5570_2.png) [@nmaas87](https://forums.balena.io/u/nmaas87)\
**Post date:** [June 1, 2022, 6:58am UTC](https://forums.balena.io/t/docker-compose-exec-format-error/358387/2 "2022-06-01T06:58:46Z")

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Hey @RonaldGuilhermePDS - the error you are seeing is because you try to install openBalena - which is for x64 only - on a Raspberry Pi 3 - which is ARM architecture. openBalena needs to be installed on an Ubuntu 18.04 x64 server as detailed in the Getting started guide: [openBalena - Home](https://www.balena.io/open/docs/getting-started) - it will not run on an Raspberry Pi 3.

Cheers,  
Nico