Strange behaviour referecing wrong module when trying to start binary

[zoedsoupe]

Host

Host OS: MacOS Sonoma 14.1
Host CPU: arm64

Please run zig version in your Burrito project directory and write the version here: v0.11.0

Please run elixir -v in your Burrito project directory and write the version here:

Erlang/OTP 26 [erts-14.1.1] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [jit]

Elixir 1.14.5 (compiled with Erlang/OTP 26)

---

Target

Host OS: MacOS 14.1
Host CPU: arm64
Host LibC and Version

Apple clang version 15.0.0 (clang-1500.0.40.1)
Target: arm64-apple-darwin23.0.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

---

Nice project here! I trying to build a simple CLI with burrito but it seems to be referencing the wrong start module. I don’t know if I’m doing something wrong… This is my application module (entrypoint):

# lib/exlings/application.ex
defmodule Exlings.Application do
  @moduledoc """
  Main application entrypoint to parse args
  and handle commands.
  """

  use Application

  alias Burrito.Util.Args

  @impl true
  def start(_, _) do
    IO.puts("FUNCIONANDO")
    args = Args.get_arguments()
    IO.puts(args)

    Exlings.CLI.parse(args)

    System.halt(0)
  end
end

And the initial module Exlings there’s no content besides a @moduledoc.

Trying to build and run it gives me this error:

08:22:11.188 [notice] Application exlings exited: exited in: Exlings.start(:normal, [])
    ** (EXIT) an exception was raised:
        ** (UndefinedFunctionError) function Exlings.start/2 is undefined or private
            (exlings 0.1.0) Exlings.start(:normal, [])
            (kernel 9.1) application_master.erl:293: :application_master.start_it_old/4
Kernel pid terminated (application_controller) ("{application_start_failure,exlings,{bad_return,{{'Elixir.Exlings',start,[normal,[]]},{'EXIT',{undef,[{'Elixir.Exlings',start,[normal,[]],[]},{application_master,start_it_old,4,[{file,\"application_master.erl\"},{line,293}]}]}}}}}")

Trying to move this implementation to the main module Exlings seems to raise the same not found function error.

My mix.exs is:

defmodule Exlings.MixProject do
  use Mix.Project

  def project do
    [
      app: :exlings,
      version: "0.1.0",
      elixir: "~> 1.14",
      start_permanent: Mix.env() == :prod,
      deps: deps(),
      releases: releases()
    ]
  end

  def application do
    [
      mod: {Exlings.Application, []},
      extra_applications: [:logger]
    ]
  end

  def releases do
    [
      exlings: [
        steps: [:assemble, &Burrito.wrap/1],
        cookie: Base.url_encode64(:crypto.strong_rand_bytes(40)),
        burrito: [
          targets: [
            macos: [os: :darwin, cpu: :x86_64],
            macos_m1: [os: :darwin, cpu: :aarch64],
            linux: [os: :linux, cpu: :x86_64],
            windows: [os: :windows, cpu: :x86_64]
          ],
          debug: Mix.env() != :prod
        ]
      ]
    ] 
  end

  defp deps do
    [
      {:owl, "~> 0.6"},
      {:nexus_cli, "~> 0.4.2"},
      {:file_system, "~> 0.2 or ~> 0.3"},
      {:burrito, github: "burrito-elixir/burrito"},
      {:credo, "~> 1.6", only: [:dev, :test], runtime: false}
    ]
  end
end

The complete project can be found in https://github.com/zoedsoupe/exlings

[doawoo]

I went and checked out your repo and managed to make it all function properly with no changes based on the main burrito branch:

I'll close this for now, but feel free to open it if you're still running into any issues!

[zoedsoupe]

I still do not realised to make work into my computer. Maybe there’s something missing?

issuing mix release generates correctly the burrito_out/exlings_macos_m1, however I keep receiving this strange behaviour:

 ./burrito_out/exlings_macos_m1

11:13:51.803 [notice] Application exlings exited: exited in: Exlings.start(:normal, [])
    ** (EXIT) an exception was raised:
        ** (UndefinedFunctionError) function Exlings.start/2 is undefined or private
            (exlings 0.1.0) Exlings.start(:normal, [])
            (kernel 9.1) application_master.erl:293: :application_master.start_it_old/4
Kernel pid terminated (application_controller) ("{application_start_failure,exlings,{bad_return,{{'Elixir.Exlings',start,[normal,[]]},{'EXIT',{undef,[{'Elixir.Exlings',start,[normal,[]],[]},{application_master,start_it_old,4,[{file,\"application_master.erl\"},{line,293}]}]}}}}}")

Crash dump is being written to: erl_crash.dump...done

I did some modifications on the project, adding some features, but the Exlings.Application module stills untouched.

I do have zig, xz and elixir executable, otherwise it shouldn’t build the project. But i really don’t udnerstand why i’m receiving this error.

I also tried to build a docker image with the CLI on ghcr.io/zoedsoupe/exlings:prod but no success:

> docker run ghcr.io/zoedsoupe/exlings:prod

rosetta error: failed to open elf at /lib64/ld-linux-x86-64.so.2