Mix failing (Mix) Could not compile dependency

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1

Getting wierd failures on a docker build today. Not sure if this is rebar3 issue or some connectivity issue to hex.pm as I can build the project fine from my local but fails in Hetzner. It is docker build so everything is generated in a container
** (Mix) Could not compile dependency :idna, "/root/.mix/rebar3 bare compile --paths="/src/ultronex/_build/prod/lib/*/ebin"" command failed. You can recompile this dependency with "mix deps.compile idna", update it with "mix deps.update idna" or clean it with "mix deps.clean idna"

** (Mix) Could not compile dependency :mimerl, "/root/.mix/rebar3 bare compile --paths="/src/ultronex/_build/prod/lib/*/ebin"" command failed. You can recompile this dependency with "mix deps.compile mimerl", update it with "mix deps.update mimerl" or clean it with "mix deps.clean mimerl"

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this seems related to an old reported issue but no solution

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turns out compiling idna is a super CPU intense process and the instance kept hitting 100% and compile failed. :unamused:

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4

Just a quick note for anyone coming into this thread late (like me). In the linked issue, there’s a recommendation to add a swap space. I did this on a Digitalocean droplet and it solved this issue.

8 Likes
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@ajose01 thank you! This enabled me to use a $4 droplet on digital ocean to deploy my minimalistic app without upgrading memory.

1 Like