Elixir interpreter error

Question

I was following elixir getting started where it says run:

iex> i 'hello'

so I ran:

iex(1)> i 'hello'

and got:

 ** (CompileError) iex:2: undefined function i/1

elixir version:
Erlang/OTP 18 [erts-7.3] [source] [64-bit] [smp:4:4] [async-threads:10] [kernel-poll:false] Interactive Elixir (1.1.0-dev)

What version of Elixir did you install? Looks like you have an old version. — Dogbert
– Dogbert, Commented Nov 8, 2016 at 9:35
sudo apt-get install elixir on ubuntu: Erlang/OTP 18 [erts-7.3] [source] [64-bit] [smp:4:4] [async-threads:10] [kernel-poll:false] Interactive Elixir (1.1.0-dev) — yonatan
– yonatan, Commented Nov 8, 2016 at 9:36
Yep, that's an old version. i was added in 1.2. Try installing the latest version using the instructions here: elixir-lang.org/install.html#unix-and-unix-like — Dogbert
– Dogbert, Commented Nov 8, 2016 at 9:39
@Dogbert thanx it's fixed :), you want to write the answer? or should I do it? — yonatan
– yonatan, Commented Nov 8, 2016 at 9:49
@yonatan you should accept Dogbert's answer for people who look at this in the future. — Onorio Catenacci
– Onorio Catenacci, Commented Nov 9, 2016 at 18:35

yonatan · Accepted Answer · 2016-11-08 13:33:41Z

17

The function IEx.Helpers.i/1, which the guide you linked to uses, was added in Elixir 1.2.0. You need to install Elixir 1.2.0 or later version to use it.

see http://elixir-lang.org/install.html#unix-and-unix-like, for installation guide.

edited Nov 8, 2016 at 13:33

yonatan

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answered Nov 8, 2016 at 10:17

Dogbert

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