Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 5 Nov 2026. What's built · Install 0.3.0
jadpo
ReferenceErrors

ErrorsValues and types · rule

type.constraint_contradiction

Constraints contradict each other.

Area 2, Values and types; not declinable; the next step is usually the agent's.

example
type Nickname = Text {    min_length: 10    max_length: 3}
jadpo checkcheck failed: 1 error, 1 file

error max_length: 3 is below min_length: 10

--> main.jadpo:3:5

  |2 |     min_length: 10  |     ---------- the minimum3 |     max_length: 3  |     ^^^^^^^^^^ below the minimum
reason
No value could follow both rules, so the type could never be built.
next
Correct min_length or max_length (agent)
rule
type.constraint_contradiction
help
https://jadpo.dev/docs/errors/type.constraint_contradiction

Markdown for agents: /docs/errors/type.constraint_contradiction.md.Built from Jadpo main at aee2e8f.