Changing Default Version of Elixir After Upgrade?

Question

I'm trying to upgrade Elixir on Mac OSX. Homebrew shows that I've upgraded successfully. But when I run elixir --version, I get the old version??

Is there an extra step I need to do to set the upgraded version to the default?

Here's the relevant terminal messages...

22:~ 22$ elixir --version
Erlang/OTP 19 [erts-8.2] [source] [64-bit] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]

Elixir 1.3.4
22:~ 22$ brew update

Updated 1 tap (homebrew/core).
==> New Formulae
guile@2.0
==> Updated Formulae
bazel@0.2    folly        harfbuzz     libgosu      scalaenv     terragrunt
22:~ 22$ 
22:~ 22$ brew upgrade elixir
Error: elixir 1.4.2 already installed
22:~ 22$ elixir --version
Erlang/OTP 19 [erts-8.2] [source] [64-bit] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]

Elixir 1.3.4
22:~ 22$

Is that the only way you installed elixir? What does `which elixir` say? — Justin Wood, Apr 24 '17 at 14:59
I tried an install using macports as well. Here's what I'm getting from which elixir: /opt/local/bin/elixir — Emily, Apr 24 '17 at 15:03
That sounds like it is installed from macports. Either uninstall it from macports. Or, if you plan on use homebrew, just uninstall macports. — Justin Wood, Apr 24 '17 at 15:04
Maybe try removing both homebrew and macports and then install only one of them. — Onorio Catenacci, Apr 24 '17 at 15:19

score 3 · Accepted Answer · edited May 23 '17 at 12:25

3

Check whether the version is already installed (but not activated)

$ brew info elixir

If you get multiple versions then:

$ brew switch elixir 1.4.2

If this not working, check the other ways mentioned here

edited May 23 '17 at 12:25

Community

1
1

answered Apr 24 '17 at 15:07

Eslam Hamouda

1,141
9
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score 1 · Answer 2 · answered Apr 24 '17 at 15:25

I don't bother with brew for elixir since the build form source is so dead simple. I do use brew for erlang.

get clone https://github.com/elixir-lang/elixir.git
cd elixir
git checkout v1.4.2
make clean && make && sudo make install

The make clean is not necessary on the first build, but is needed when you change versions.

When your ready to update to a later version

git fetch origin
git checkout <new-tag>
make clean && make && sudo make install

Has not failed me yet.

I have a Gentoo background so I always build from source. `brew install -s elixir` :- ) — Wojciech Bednarski, May 03 '17 at 19:25

Changing Default Version of Elixir After Upgrade?

2 Answers2