混合任务“释放"；找不到错误 [英] Mix task "release" not found error

问题描述

当edeliver失败并显示错误消息** (Mix) The task "release" could not be found以及退出代码为1时，我正在使用edeliver为我的Elixir/Phoenix应用程序设置Ubuntu 16.04服务器.在获取依赖项后运行MIX_ENV=prod mix release或仅mix release，我会遇到相同的错误.

I was setting up an Ubuntu 16.04 server for my Elixir/Phoenix application with edeliver when edeliver failed with the error message ** (Mix) The task "release" could not be found along with a exit code of 1. If I go to my build server, git pull my app and run MIX_ENV=prod mix release or just mix release after getting dependencies, I get the same error.

但是，相同的应用程序可以在本地正常运行.

However, the same application works without any problem locally.

在服务器和本地计算机上，我的erlang版本是erts-9.0，而elixir的版本是1.5.5.十六进制版本也与0.16.1相同.

My erlang version is erts-9.0 and elixir version is 1.5.5 on both the server and my local computer. Hex version is also the same at 0.16.1.

使用以下命令安装了Phoenix:mix archive.install https://github.com/phoenixframework/archives/raw/master/phx_new.ez.

Phoenix was installed using this command: mix archive.install https://github.com/phoenixframework/archives/raw/master/phx_new.ez.

这是我的mix.exs文件.

defmodule MyApp.Mixfile do
  use Mix.Project

  def project do
    [
      app: :MyApp,
      version: "0.0.1",
      elixir: "~> 1.4",
      elixirc_paths: elixirc_paths(Mix.env),
      compilers: [:phoenix, :gettext] ++ Mix.compilers,
      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: {MyApp.Application, []},
      extra_applications: [:comeonin, :logger, :runtime_tools, :earmark, :distillery, :edeliver]
    ]
  end

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

  # Specifies your project dependencies.
  #
  # Type `mix help deps` for examples and options.
  defp deps do
    [
      {:phoenix, "~> 1.3.0"},
      {:phoenix_pubsub, "~> 1.0"},
      {:phoenix_ecto, "~> 3.2"},
      {:mariaex, ">= 0.0.0"},
      {:phoenix_html, "~> 2.10"},
      {:comeonin, "~> 4.0"},
      {:phoenix_live_reload, "~> 1.0", only: :dev},
      {:gettext, "~> 0.11"},
      {:earmark, "~> 1.2.3"},
      {:cowboy, "~> 1.0"},
      {:edeliver, "~> 1.4.4"},
      {:distillery, "~> 1.5.1"}
    ]
  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

我的edeliver配置文件.deliver/config如下:

My edeliver configuration file .deliver/config is as follows:

APP="MyApp"

BUILD_HOST="1.1.1.1"
BUILD_USER="ubuntu"
BUILD_AT="/home/ubuntu/app_build"

PRODUCTION_HOSTS="1.1.1.1" 
PRODUCTION_USER="ubuntu" 
DELIVER_TO="/home/ubuntu/app_release" 

pre_erlang_get_and_update_deps() {
  local _prod_secret_path="/home/ubuntu/app_config/prod.secret.exs"
  if [ "$TARGET_MIX_ENV" = "prod" ]; then
    __sync_remote "
      ln -sfn '$_prod_secret_path' '$BUILD_AT/config/prod.secret.exs'
    "
  fi
}

推荐答案

TLDR:明确指向分支，并确保git下的文件夹/rel/并已提交:

TLDR: point your branch explicitly and make sure, that folder /rel/ under git and committed:

$ mix edeliver build release --branch=feature/deploy

我有一个类似的错误:** (Mix) The task "release" could not be found，当我尝试找到解决方案时，这个悬而未决的讨论引起了我多次注意.我意识到，混合任务release在/rel/config.exs中.而且，如果您按字面上所有教程中所述使用命令$ mix edeliver build release，则edeliver会获得master分支版本(无论您尝试从哪个分支构建).

I had similar error: ** (Mix) The task "release" could not be found and when I tried to find a solution, this unresolved discussion got my attention several times. I realized, that mix task release is in the /rel/config.exs. And if you use command $ mix edeliver build release as mentioned in literally all tutorials, edeliver gets master branch version (no matter from what branch you try to build).

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