How do I install a specific version of Erlang/OTP?

Question

I have inherited a project with a puppet/vagrant/Virtual box setup. The vagrant provision is breaking around my erlangs surrounding rabbitmq-server.

the error:

Answer 1

1. Remove previous Erlang versions/packages:

$ sudo apt-get purge erlang esl-erlang erlang-base erlang-crypto erlang-eldap erlang-inets erlang-mnesia erlang-os-mon
$ sudo apt-get autoremove
$ sudo apt-get install -f

$ sudo rm -rf /usr/lib/erlang
$ cd /usr/local/bin
$ sudo rm -f erl
$ sudo rm -f erlc
$ sudo rm -f epmd
$ sudo rm -f run_erl
$ sudo rm -f to_erl
$ sudo rm -f dialyzer
$ sudo rm -f typer
$ sudo rm -f escript
$ sudo rm -f ct_run

2. Add the repository entry manually:

• To get Ubuntu codename type $ lsb_release -c. In my case it's xenial.

• $ sudo nano /etc/apt/sources.list and add following text at the end of the file:

# Erlang Solutions
deb https://packages.erlang-solutions.com/ubuntu xenial contrib

• Create a file /etc/apt/preferences.d/erlang :

$ sudo touch /etc/apt/preferences.d/erlang
$ sudo nano /etc/apt/preferences.d/erlang

with the following contents:

Package: erlang* esl-erlang
Pin: version 1:21.3*
Pin-Priority: 501

where 21.3 is the version of Erlang/OTP.

3. Install Erlang:

$ sudo apt-get update
$ sudo apt-get install esl-erlang
$ sudo ln -s /usr/lib/erlang/bin/erl /usr/local/bin/erl

4. Check installed Erlang version:

$ erl -eval '{ok, Version} = file:read_file(filename:join([code:root_dir(), "releases", erlang:system_info(otp_release), "OTP_VERSION"])), io:fwrite(Version), halt().' -noshell

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Related link: https://www.erlang-solutions.com/resources/download.html