erlcloud dependency

[trinode]

Hi there,

I plan on using arc_ecto (arc itself builds fine) with the local file system (not s3 etc) and I'm having difficult installing it due to erlcloud, somewhere something is missing on my install and dependency resolution is not resolving it.
Am I missing something obvious?

==> lhttpc (compile)
==> jsx (compile)
==> erlcloud (compile)
Compiling src/erlcloud_xml.erl failed:
src/erlcloud_xml.erl:5: can't find include lib "xmerl/include/xmerl.hrl"
src/erlcloud_xml.erl:72: variable 'Value' is unbound
src/erlcloud_xml.erl:72: record xmlText undefined
src/erlcloud_xml.erl:73: record xmlElement undefined
src/erlcloud_xml.erl:74: variable 'Content' is unbound
src/erlcloud_xml.erl:80: variable 'Value' is unbound
src/erlcloud_xml.erl:80: record xmlAttribute undefined
src/erlcloud_xml.erl:86: record xmlText undefined
ERROR: compile failed while processing /home/anthony/Projects/peoplematchr_elixir/deps/erlcloud: rebar_abort
** (Mix) Could not compile dependency erlcloud, /home/anthony/.mix/rebar command failed. If you want to recompile this dependency, please run: mix deps.compile erlcloud

here's my deps in case it's me:-

  defp deps do
    [{:phoenix, "~> 1.0.2"},
     {:phoenix_ecto, "~> 1.1"},
     {:postgrex, ">= 0.0.0"},
     {:phoenix_html, "~> 2.1"},
     {:phoenix_live_reload, "~> 1.0", only: :dev},
     {:cowboy, "~> 1.0"},
     {:factory_girl_elixir, "~> 0.1.1"},
     {:faker, "~> 0.5"},
     {:arc, "~> 0.1.2"},
     {:arc_ecto, "~> 0.2.0"}
     ]
  end

[stavro]

Hmm.. which operating system and version of erlang are you using?

Can you open up an Elixir shell and show me the following:

:xmerl.module_info

[trinode]

It's ubuntu, and installed (elixir, erlang, phoenix) as per the guide on the Phoenix Framework website, including adding the repos from erlang solutions. I assume it's been extracted out if it's meant to be built in by default, perhaps an explicit requirement is in order?

Interactive Elixir (1.0.5) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> :xmerl.module_info
** (UndefinedFunctionError) undefined function: :xmerl.module_info/0 (module :xmerl is not available)
:xmerl.module_info()

[stavro]

Odd - Using either homebrew or the erlang release builds (seen here: https://github.com/HashNuke/heroku-buildpack-elixir/blob/master/lib/erlang_funcs.sh) it should have xmerl included... I haven't seen this error before.

[trinode]

Ok, it seems I somehow managed to install (via apt-get) only part of erlang, not sure how it's possible but apt-get install erlang only got about half the libs, running it again installed a load more (including xmerl), I've been happily working away with half an erlang and almost everything worked! This should work now too... apologies,