Dialyzer Issues in Elixir Libraries

[al2o3cr]

The root cause appears to be one line in AnyHttp’s configuration:

elixirc_options: [debug_info: Mix.env() == :dev],

This setting has caused exactly the behavior you observed (“Could not get Core Erlang code for …etc…”) in other projects:

Dialyzer "Could not get Core Erlang code for"

When a dependency is installed by mix, Mix.env is normally :prod - you can change that with the env option That causes polyn’s mix.exs to omit the metadata (line 14):

I tested this locally with the chore/broken-dialyzer branch:

• Running mix dialyzer on the code as-is fails with the previously-discussed errors about missing functions.
• Commenting out the elixirc_options line in AnyHttp’s mix.exs and rebuilding from scratch (after removing _build and priv/plts) gives a successful result with no errors.