Message 10356

TUFLOW FV

Available since version: 2026.2.0

ERROR 10356 - Zone ID, <zone_id>has fewer than 3 vertices.

Description

The GIS zone polygon identified by the reported zone ID has fewer than 3 vertices. A valid polygon requires at least 3 vertices to define an enclosed area.

Suggestions

Open the GIS layer containing this zone and inspect the polygon for the reported zone ID. Correct the geometry so that it forms a valid closed polygon with at least 3 vertices. Check that no duplicate vertices exist. If ensure, delete and re-digitise the polygon.