TUFLOW Message 1464

TUFLOW Message
ERROR 1464 - Limit of 100 input 1d_nwk/1d_pit files exceeded when using "MESHPARTS == ON"

Alternate Message
NA

Message Type
ERROR

Description
There is a hard-coded limit of 100 input files for 1d_nwk + 1d_pit inputs when the option "Meshparts == ON" has been set for the model. Note, prior to the 2025.1.0 release, TUFLOW did not produce an error and exceeding this limit could potentially result in WLLs not producing outputs in some section of channels.

Suggestions
Meshparts can be turned off ("Meshparts == OFF") to remove this limit (this solution will only work for the 2025.1.0 release or onward). Alternatively, the limit is linked with the number of input files and not the number of features, so some of the input layers can be concatenated to bring the total number of files down to 100 or less. In QGIS, this can be done using the "Merge vector layers" processing tool.

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