Hmmm. Could you share what the contents of your mix.exs looks like?

If you’re following this tutorial, it should look like this:

defmodule KV.MixProject do
  use Mix.Project

  def project do
    [
      app: :kv,
      version: "0.1.0",
      elixir: "~> 1.6-dev",
      start_permanent: Mix.env == :prod,
      deps: deps()
    ]
  end

  # Run "mix help compile.app" to learn about applications.
  def application do
    [
      extra_applications: [:logger]
    ]
  end

  # Run "mix help deps" to learn about dependencies.
  defp deps do
    [
      # {:dep_from_hexpm, "~> 0.3.0"},
      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"},
    ]
  end
end

Notice that the two lines inside of deps should be commented out (starting with a #):

  defp deps do
    [
      # {:dep_from_hexpm, "~> 0.3.0"},
      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"},
    ]
  end

It seems like maybe the two lines in this function might not be commented out in your case?

That’s a more-or-less wild guess and I’m not sure if that’s the issue.

Those 2 are just example entries. They do not actually exist on GitHub nor hex.

Hi !

I think I answered some of my questions.

mix deps.get
Resolving Hex dependencies...
Dependency resolution completed:
New:
  cortex 0.5.0
  file_system 0.2.6
* Getting cortex (Hex package)
* Getting file_system (Hex package)

so is hex only available through mix ?