Elixir“在注册表中找不到包：：hackney”问题

Question

我正在尝试为我的项目增加覆盖范围，但一直遇到问题。

我已经尝试了此列表底部错误消息中的所有建议。

我有一个大型项目，我希望为单元测试添加覆盖范围，但所有覆盖范围包都类似。

我开始了一个干净的项目，“bug”，只有mix deps() 添加所以干扰被最小化。

任何帮助，将不胜感激。

版本：

rebar3 --version
rebar 3.13.2 on Erlang/OTP 22 Erts 10.4.3

elixir --version
Erlang/OTP 22 [erts-10.4.3] [source] [64-bit] [smp:12:12] [ds:12:12:10] [async-threads:1] [hipe]
Elixir 1.9.4 (compiled with Erlang/OTP 22)

erl --version
Erlang/OTP 22 [erts-10.4.3] [source] [64-bit] [smp:12:12] [ds:12:12:10] [async-threads:1] [hipe]
Eshell V10.4.3  (abort with ^G)

deps 中的 mix.exs

defp deps() do
  [
    #{:coverex, "~> 1.5", only: [:test], runtime: false},
    {:excoveralls, "~> 0.13.0", only: [:test], runtime: false},
    {:idna, "~> 6.0.1"},
  ]
end

我使用了不同版本的coverex 和excoveralls，但结果是一样的。

我注意到：

"Bad dependency version for httpoison (and others...)"

但我也不明白该怎么办。

错误/警告消息似乎与依赖项有关。依赖项不应该自己解决这些问题吗？

这是清单：

=> mix clean
=> mix deps.get
Resolving Hex dependencies...
Dependency resolution completed:
Unchanged:
  certifi 2.5.2
  excoveralls 0.13.0
  hackney 1.16.0
  idna 6.0.1         # Below it says idna 6.0.1 not found - why?
  jason 1.2.1
  metrics 1.0.1
  mimerl 1.2.0
  parse_trans 3.3.0
  ssl_verify_fun 1.1.6
  unicode_util_compat 0.5.0
All dependencies are up to date
Command completed
=> mix test  # Try to run default test on a new repo
===> Package idna-6.0.1 not found. Fetching registry updates and trying again...
===> Updating package registry...
===> Writing registry to /home/cecilm/.cache/rebar3/hex/default/registry
===> Generating package index...
===> [appsignal:1.6.2], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.6-beta.1], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.0], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.7.0-alpha.4], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.0-beta.1], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.3], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.7.0-alpha.3], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [batch_loader:0.1.0-beta.4], Bad dependency version for absinthe: ~> 1.4.0 or ~> 1.5.0-beta.
===> [prometheus_httpd:2.1.10], Bad dependency version for prometheus: ~> 3.5 or ~> 4.2.
===> [batch_loader:0.1.0-beta.5], Bad dependency version for absinthe: ~> 1.4.0 or ~> 1.5.0-beta.
===> [appsignal:1.7.0-alpha.2], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.7.0-alpha.1], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [batch_loader:0.1.0-beta.6], Bad dependency version for absinthe: ~> 1.4.0 or ~> 1.5.0-beta.
===> [appsignal:1.12.0], Bad dependency version for decorator: ~> 1.2.3 or ~> 1.3.
===> [appsignal:1.6.1], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.5], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.6-beta.2], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.6], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.7], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [appsignal:1.6.4], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> [batch_loader:0.1.0-beta.3], Bad dependency version for absinthe: ~> 1.4.0 or ~> 1.5.0-beta.
===> [appsignal:1.6.0-alpha.1], Bad dependency version for httpoison: ~> 0.11 or ~> 1.0.
===> Writing index to /home/cecilm/.cache/rebar3/hex/default/packages.idx
===> Package not found in registry: {<<"idna">>,<<"6.0.1">>}.
(Mix) Could not compile dependency :hackney, "/home/cecilm/.mix/rebar3 bare
compile --paths="/home/cecilm/play/Elixir/bug/_build/test/lib/*/ebin"" command
failed. You can recompile this dependency with "mix deps.compile hackney",
update it with "mix deps.update hackney" or clean it with "mix deps.clean
hackney"

Answer 1

这是与 Erlang 的rebar包管理器和idna依赖项的兼容性问题。您需要通过运行来更新项目中的钢筋

mix local.rebar

在命令行。这应该可以解决问题。

Answer 2

（来自我在elixirforum.com 上的交叉帖子）

删除本地 rebar3 和 mix 安装，以及当前获取的依赖项及其编译版本解决了这个问题。

rm -rf ~/.cache/rebar3 ~/.mix deps _build 
mix deps.get

据我所知，hex 会告诉你是否有新版本可用，通过 mix local.rebar 安装和使用的 rebar 版本取决于你使用的 mix（所以长生不老药）的版本。它受精确版本匹配的约束，而不是（语义）范围。

因此，好的习惯是当 hex 告诉您可以在 mix deps.get 后更新时运行 mix local.hex，而您应该在每次更新 elixir 后运行 mix local.rebar。

每周做一次。某种与依赖项有关的棘手错误......