LDC-Q4005 — The predicate is applied to the wrong number of arguments

What it means

A declared predicate takes a fixed number of arguments, and every use must supply exactly that many: fewer leaves a participant unnamed, more adds one the declaration never defined. When the count differs, the engine stops and reports both numbers — how many the declaration takes and how many the question gave.

Adjust the argument list to the declared count. The predicate name and the surrounding question stay as written.

Example

LawQL

query q over "demo.diagnostics" { for x: Applicant; where resident(x); select resident(x, x); }

Fix

LawQL

from r in rules select r

Engine message

The engine reports this in its own wording:

Output

LDC-Q4005: resident: expected 1 args, got 2.

Related

• Questions to the engine — the shape of a question over a package.
• LDC-Q4004 — when the predicate itself is unknown.