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

我一直在试图嵌入Ejabberd成凤的Web应用程序。为此，我尝试按照本教程进行操作。步骤如下：

• 安装了一个ubuntu / xenial64 Vagrant盒子。

• 根据官方指南安装了Elixir 。

• 根据官方指南安装了Phoenix 。

• 安装了一些程序包以成功编译Phoenix的种子应用程序依赖项： sudo apt install build-essential libssl-dev libyaml-cpp-dev libyaml-dev libpython2.7-dev

• 我已经将ejabberd依赖项添加到mix.exs文件中：

  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

• 发生了很多错误，大部分是未定义的函数和变量。我把完整的日志记录在这个要点上。

为什么会发生这些错误？有人成功编译了ejabberd依赖项吗？如何？感谢您的时间 ：）。