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FANUC Alarm MEMO-164 — Line: … Structure mismatch not handled

Manufacturer wording — Line: %d Structure mismatch not handled
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC MEMO-164 (“Line: … Structure mismatch not handled”): The type definition for a structure in a KAREL program already exists but is of a different type than what you are attempting to load. First check: Translate this program using a version of the translator that matches the version of the controller.

Updated 2026-09-17 · LogrobotLM reference

Description

The type definition for a structure in a KAREL program already exists but is of a different type than what you are attempting to load.

Remedy

Translate this program using a version of the translator that matches the version of the controller. Then try to load the program again.

Related codes

MEMO-162Line: … Local variable mismatch not handledMEMO-163Line: … Field mismatch not handledMEMO-165Line: … First field is differentMEMO-166Path conversion failed

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →