Hello. I’m trying to install my first application with Phoenix.

I just installed elixir:

sudo apt-get install elixir

elixir -v returns me:

Erlang/OTP 24 [erts-12.2.1] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [jit]
Elixir 1.12.2 (compiled with Erlang/OTP 24)

Then I did:

mix archive.install hex phx_new

sudo apt-get install inotify-tools

mix phx.new app --database mysql

cd app

mix deps.get

mix ecto.create

And I have this error:

==> phoenix
Compiling 69 files (.ex)

== Compilation error in file lib/mix/tasks/phx.gen.cert.ex ==
** (RuntimeError) error parsing file /usr/lib/erlang/lib/public_key-1.11.3/include/OTP-PUB-KEY.hrl, got: {:error, :enoent}
    (elixir 1.12.2) lib/record/extractor.ex:84: Record.Extractor.read_file/2
    (elixir 1.12.2) lib/record/extractor.ex:50: Record.Extractor.extract_record/2
    lib/mix/tasks/phx.gen.cert.ex:146: (module)
    (stdlib 3.17) erl_eval.erl:685: :erl_eval.do_apply/6
could not compile dependency :phoenix, "mix compile" failed. You can recompile this dependency with "mix deps.compile phoenix", update it with "mix deps.update phoenix" or clean it with "mix deps.clean phoenix"

Why ?
Thanks.