# `Calendrical.MissingFieldsError`

Exception raised when a date or datetime does not have all
the fields required by the function being called.

### Fields

* `:function` — the name of the function that required the
  fields, as a string.

* `:fields` — a keyword list whose keys are the required field
  names and whose values are the values that were found
  (`nil` for missing fields).

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*Consult [api-reference.md](api-reference.md) for complete listing*