Message 10120

TUFLOW FV
Available since version: 2026.2.0
ERROR 10120 - Duplicate nodestring id: <nodestring_id> found in either 2dm or external nodestrings

Description

The same nodestring ID has been found more than once across the .2dm mesh and external nodestring GIS files. Nodestring IDs must be unique across all sources.

Suggestions

Check the .2dm file and all GIS nodestring layers for duplicate IDs and assign a unique ID to each nodestring. The GIS messages output file shows the location of the duplicated nodestring.