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OTP Version Mismatch

#erlang#otp#compile
mstalker

mstalker

OTP Version Mismatch

I’m using a Docker image that has Erlang/OTP 20. If I use a version of Elixir compiled with OTP 19, can I expect the same bytecode output when I compile my dependencies, as if I had an Elixir compiled with OTP 20?

I want to make sure I don’t have any issues when my Elixir version was compiled with a different OTP version than my system is running.

9 comments
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outlog

outlog

while it should work going that way…

I would really recommend absolute dev/staging/production parity - even so pedantic down to exact patch version…

you can use something like https://github.com/asdf-vm on your dev box to install the appropriate versions on a per project level…

3
Post #7
NobbZ

NobbZ

Bob is as official as anything from the hex-team. And you can also build from elixir and Erlang directly from git, by tag, branch, or sha, but as I’m on mobile I can’t lookup the necessary syntax right now. But I remember it was only documented as a generic feature of asdf and not in the asdf exixir plugin repository.

2
Post #10
jswny

jswny

Yep and if you want to install Elixir compiled with a certain (major) version of Erlang with asdf, you can do something like asdf install elixir 1.6.0-otp-20 :slight_smile:

1
Post #8
mstalker

mstalker

Thanks, everyone! It looks like asdf uses Elixir bulids precompiled by Bob. How reliable are those builds? Are they officially supported?

1
Post #9

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