unbound_prefix #

Declared by #

• @tabnas/xml — XML 1.0 parsing for the tabnas engine, with namespaces and entities. source npm

The message text for a plugin code lives in that plugin's own error catalogue, alongside its grammar — this page does not copy it, so it cannot fall out of step with the package you are running. The plugin's AGENTS.md lists what raises each of its codes.

What to do with it #

1. Read the rest of the diagnostic: row/col point at the input, expected lists the tokens that would have matched, and ruleStack shows how the parser got there.
2. Reproduce it on its own with tabnas diagnose --json, which prints the whole object.
3. Work the grammar back from the failing alternate — the debug-parse skill is that procedure written out, and the errors guide covers raising good ones from your own grammar.