TUFLOW Message 1069

TUFLOW Message
ERROR 1069 - No Manning's n value found for Material <material id> in cross-section <cross-section name> in <cross-section path>

Alternate Message
NA

Message Type
ERROR

Description
The Material ID specified in the cross-section is not defined in the materials dataset (as defined by the Read Materials File == in the .tcf). When using the "M" flag on 1D cross-sections, TUFLOW is expecting an integer material ID. The roughness value is obtained from the material dataset.
This is in contrast to the "N" flag, if this flag is used the Manning's value is defined on the cross-section.

Suggestions
Check that the material ID specified exists in the Materials dataset. If the outputted material ID in the error message is 0, check that a material ID and not a Manning's value has been specified on the cross-section.

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