使用 Mix 编译 Phoenix 应用程序的 Ejabberd 依赖项时出错：无法编译依赖项：ejabberd，"mix compile" 失败

Question

我一直在尝试嵌入 Ejabberd into a Phoenix web application. To do this, I tried to follow this tutorial。步骤如下：

安装了一个 ubuntu/xenial64 Vagrant 盒子。
根据official guide.
按照official guide.
安装了一些包以成功编译 Phoenix 的种子应用依赖项：sudo apt install build-essential libssl-dev libyaml-cpp-dev libyaml-dev libpython2.7-dev

我已将 ejabberd 依赖项添加到 mix.exs 文件：

defmodule PhoenixEjabberd.Mixfile do
  use Mix.Project

  def project do
    [app: :phoenix_ejabberd,
     version: "0.0.1",
     elixir: "~> 1.2",
     elixirc_paths: elixirc_paths(Mix.env),
     compilers: [:phoenix, :gettext] ++ Mix.compilers,
     build_embedded: Mix.env == :prod,
     start_permanent: Mix.env == :prod,
     aliases: aliases(),
     deps: deps()]
  end

  # Configuration for the OTP application.
  #
  # Type `mix help compile.app` for more information.
  def application do
    [mod: {PhoenixEjabberd, []},
     applications: [:phoenix, :phoenix_pubsub, :phoenix_html, :cowboy, 
                    :logger, :ejabberd, :gettext,
                    :phoenix_ecto, :postgrex]]
  end

  # Specifies which paths to compile per environment.
  defp elixirc_paths(:test), do: ["lib", "web", "test/support"]
  defp elixirc_paths(_),     do: ["lib", "web"]

  # Specifies your project dependencies.
  #
  # Type `mix help deps` for examples and options.
  defp deps do
    [{:phoenix, "~> 1.2.1"},
     {:phoenix_pubsub, "~> 1.0"},
     {:phoenix_ecto, "~> 3.0"},
     {:postgrex, ">= 0.0.0"},
     {:phoenix_html, "~> 2.6"},
     {:phoenix_live_reload, "~> 1.0", only: :dev},
     {:gettext, "~> 0.11"},
     {:cowboy, "~> 1.0"},
     {:ejabberd, "~> 16.12", github: "processone/ejabberd"}
   ]
  end

  # Aliases are shortcuts or tasks specific to the current project.
  # For example, to create, migrate and run the seeds file at once:
  #
  #     $ mix ecto.setup
  #
  # See the documentation for `Mix` for more info on aliases.
  defp aliases do
    ["ecto.setup": ["ecto.create", "ecto.migrate", "run priv/repo/seeds.exs"],
     "ecto.reset": ["ecto.drop", "ecto.setup"],
     "test": ["ecto.create --quiet", "ecto.migrate", "test"]]
  end
end

已执行mix do deps.get, compile
出现大量错误，主要是未定义的函数和变量。我把完整的日志放在 this Gist.

为什么会出现这些错误？有人成功编译了 ejabberd 依赖项吗？如何？谢谢你的时间:)。

Answer 1

由于未知原因 ejabberd 未能从根项目文件夹编译。为了编译它，我做了以下操作：

mix deps.get # to retrieve ejabberd 
cd deps/ejabberd
mix do deps.get, compile
cd - # to the project root
mix compile # now the project would compile

使用 Mix 编译 Phoenix 应用程序的 Ejabberd 依赖项时出错：无法编译依赖项：ejabberd，"mix compile" 失败

Error compiling Ejabberd dependency of a Phoenix application with Mix: could not compile dependency :ejabberd, "mix compile" failed

erlang

elixir-mix

elixir

ejabberd

phoenix-framework