could not find an app file at "_build/prod/lib/uuid/ebin/uuid.app" about elixir-uuid

[lpil]

Also having this problem. Is there a fix?

[zyro]

@sailxjx @lpil The app name is now elixir_uuid rather than just uuid. If you've updated this and you still get errors can I pull a project from somewhere to test locally?

[sailxjx]

I can provide the deps

defp deps do
    [
      {:phoenix, "~> 1.3.2"},
      {:phoenix_pubsub, "~> 1.0"},
      {:phoenix_ecto, "~> 3.2"},
      {:postgrex, ">= 0.0.0"},
      {:phoenix_html, "~> 2.10"},
      {:phoenix_live_reload, "~> 1.0", only: :dev},
      {:gettext, "~> 0.11"},
      {:cowboy, "~> 1.0"},
      {:elixir_uuid, "~> 1.2"},
      {:phoenix_swagger, github: "xerions/phoenix_swagger"},
      {:guardian, "~> 1.1.0"},
      {:logger_file_backend, "~> 0.0.10"},
      {:porcelain, "~> 2.0"},
      {:quantum, github: "quantum-elixir/quantum-core"},
      {:timex, "~> 3.0"},
      {:yaml_elixir, "~> 2.1"},
      {:tesla, "~> 1.1"},
      {:jason, ">= 1.0.0"},
      {:mock, "~> 0.3", only: :test},
      {:excoveralls, "~> 0.8", only: :test}
    ]
  end

[zyro]

Based on mix deps.tree it seems the problem there is guardian:

...
├── guardian ~> 1.1.0 (Hex package)
│   ├── jose ~> 1.8 (Hex package)
│   │   └── base64url ~> 0.0.1 (Hex package)
│   ├── phoenix ~> 1.0 or ~> 1.2 or ~> 1.3 (Hex package)
│   ├── plug ~> 1.3.3 or ~> 1.4 (Hex package)
│   ├── poison ~> 2.2 or ~> 3.0 (Hex package)
│   └── uuid >= 1.1.1 (Hex package)
...

Depends on uuid but I had a quick glance at their dependencies and it doesn't seem to be declared anywhere, so possibly an odd transitive dependency?

Until guardian either updates to elixir_uuid, fixes the dependency declaration/packaging, or otherwise drops uuid entirely you can probably work around it by adding {:uuid, "~> 1.1"} to your dependencies manually.

[sailxjx]

Seems they fixed this problem in the master branch of repo, but had not released in the newest version.

ueberauth/guardian@3e6fb32