Those coming from the world of TypeScript or Java initially think of classes, interfaces, and generics when they hear “types.

Report do def user_age_to_string(user) do Integer.to_string(user.age) end end # An anderer Stelle im Projekt: Report.user_age_to_string(%{age: "42"}) Integer.to_string/1 is Elixir's usual notation for ...

Before we look at any workarounds, we should look at some of the possible causes behind the error under discussion. The first, and a very common one, is outdated ...