Phoenix New Install无法编译：fs Windows 10

Question

在Windows 10上全新安装Elixir，Erlang，Phoenix等。我已多次安装Hex和rebar。无论在各种gits或其他how-to页面上阅读了多少“修复”，我都无法运行mix phoenix.server。每次都有相同的错误。

mix phoenix.server The system cannot find the path specified. ==> fs (compile) ** (Mix) Could not compile dependency :fs, "escript.exe "c:/Users/shawn.karber/.mix/rebar" compile skip_deps=true deps_dir="e:/sandbox/phoenix/test/test/_build/dev/lib"" command failed. You can recompile this dependency with "mix deps.compile fs", update it with "mix deps.update fs" or clean it with "mix deps.clean fs"

我一遍又一遍地重新编辑，更新，重新编译，清理，重新安装，我无法启动服务器。任何人都有这方面的经验或知道如何解决它？

node 6.9.1 erlang 19.0 elixir 1.4.1 rebar and rebar 3 both installed all paths are in my PATH

defmodule Test.Mixfile do
  use Mix.Project

  def project do
    [app: :test,
     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: {Test, []},
     applications: [:phoenix, :phoenix_pubsub, :phoenix_html, :cowboy, :logger, :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"}]
  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