Install specific rebar3 version on mac

Question

I want to use rebar3 with erlang 24. The problem is, that if I install the newest rebar3 version I get the necessity for erlang 25. So I installed erlang 24 first but it did not change anything. I tried to install older rebar3 version with whom erlang 24 is compatible but so far nothing has worked. I tried port and brew, but they show me only rebar 19 is available for downloads. When I clone the new rebar3 version from git, and switch to an old commit from rebar16 I cannot install it. Does anyone have any ideas what could work?

Answer 1

Get rid of your existing homebrew erlang (if any) then use kerl to install erlang, and finally build rebar3 from source. The thing I like about kerl is you can easily switch between multiple erlang installations. Here's the jist of it...

brew unlink erlang
cd ~/
curl -O https://raw.githubusercontent.com/kerl/kerl/master/kerl
chmod a+x kerl
./kerl build 24.3.4.7 24.3
mkdir kerlbins
./kerl install 24.3 ~/kerlbins/24.3
. ~/kerlbins/24.3/activate
git clone https://github.com/erlang/rebar3.git
cd rebar3/
./bootstrap
./rebar3 local install