View Source UndefinedFunctionError exception (Elixir v1.17.0-dev)

An exception raised when a function is invoked that is not defined.

The following fields of this exception are public and can be accessed freely:

For example, if you try to call MyMod.non_existing_fun("hello", 1), the error would look like:

  module: MyMod,
  function: :non_existing_fun,
  arity: 2,
  # Other private fields...