Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 30 Oct 2026. What's built · Install 0.1.0
jadpo
Reference: Configuration and time

Configuration and time · rule

type.locale_unsupported

Locale is not one the application supports.

Area 10, Configuration and time; not declinable; the next step is usually the agent's.

example
type OrderedAt = Instant {}locales {    default: Locale.en_gb    supported: [Locale.en_gb]}function placed_label(ordered_at: OrderedAt) -> PresentationText {    return text.format(        ordered_at,        zone: Zone.utc,        locale: Locale.fr_fr,        format: TimeFormat.date_long    )}
text
error: `Locale.fr_fr` isn't a locale this application supports --> main.jadpo:12:17   |12 |         locale: Locale.fr_fr,   |                 ^^^^^^^^^^^^ not in `locales`  reason: `text.format` writes text in the locales listed in `locales { supported: }`, in `app.jadpo`; `Locale.fr_fr` is not one of them, and the server never guesses a language.  next: Add `Locale.fr_fr` to `supported:` in `app.jadpo`, or use a locale that is listed (agent)  rule: type.locale_unsupported  help: https://jadpo.dev/docs/errors/type.locale_unsupportedcheck failed: 1 error, 1 file

Markdown for agents: /docs/errors/type.locale_unsupported.md.Built from Jadpo main at a707efb.