docs / errors / E02

E02 Prefix differs from the contract

Constant
E_UNKNOWN_PREFIX
Specification
§5
Lenient mode
Recorded and the document is built anyway

The header prefix does not match the contract it is validated against (or does not exist in the family registry).

How to see it

In the playground, “Editor & validator” tab, the “Inject 3 errors” button triggers E04, E05, E08 and E09 on the loaded example. From the command line, mini diagnose archivo.mini prints a JSON report with every error and the lines to regenerate.

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