# Erlang/OTP 21.1.4 is missing but only for arm 64

**URL:** <https://travis-ci.community/t/erlang-otp-21-1-4-is-missing-but-only-for-arm-64/6438>\
**Category:** Erlang\
**Tags:** build-env, bug\
**Created:** [December 13, 2019, 8:08am UTC](https://travis-ci.community/t/erlang-otp-21-1-4-is-missing-but-only-for-arm-64/6438 "2019-12-13T08:08:11Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![junaruga](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/junaruga/32/8943_2.png) [@junaruga](https://travis-ci.community/u/junaruga)\
**Post date:** [December 20, 2019, 2:03pm UTC](https://travis-ci.community/t/erlang-otp-21-1-4-is-missing-but-only-for-arm-64/6438/7 "2019-12-20T14:03:07Z")

</div>

> well looking through my simple .travis.xml i actually use docker for building. So the dependency issue is gone by removing elixir and otp.

I am happy to see the issue is gone by using docker container.  
Yes, I think using the docker container is a good approach.

> the arm32 (raspian or simiar) was a surprise to me; but given your observation it likely doesn’t work. Guess this should be added to some wish list. And in the multiarch topic.
> 
> for reference: arm32: [https://travis-ci.com/volvo-cars/signalbroker-server/builds/141907715](https://travis-ci.com/volvo-cars/signalbroker-server/builds/141907715)

There is a way to run arm32 on `arch: arm64` in Travis like this using `dpkg --add-architecture` and `setarch` command.

```auto
sudo dpkg --add-architecture armhf
sudo apt-get -yq install libc6:armhf

```

I remember I shared the way to a multiarch topic category’s thread in the past.

Here is the example.

> <https://github.com/junaruga/ci-multi-arch-native-test/blob/master/.travis.yml#L29-L46>

I suppose Travis is already adding `arch: arm32` feature to their wish list, as for example Drone CI already has it.  
If you want to run your container on arm32 environment relatively easier, I would recommend to take a look at Drone CI.

Here is the example.

> <https://github.com/junaruga/ci-multi-arch-test/blob/master/.drone.yml#L24>

Cheers,  
Jun

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