TUFLOW Message 0631

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TUFLOW Message
ERROR 0631 - no extension on input file: <>.

Alternate Message
ERROR 0631 - "<>" is not a supported GRID file format.
ERROR 0631 - GIS GRID Format is not currently supported as an input.

Message Type
ERROR

Description
This error may occur when using the 2023 Release due to changes made to support the new GeoPackage spatial database syntax. In previous releases, TUFLOW would default to .MIF if no file extension was included. Models upgraded to the 2023 Release may now receive this error.
TUFLOW has a list of supported GRID file formats documented in the Manual. The binary versions of input grids can also be used (.xf4 and .xf8). These are created automatically when running TUFLOW model for the first time.

Suggestions
Check to see GIS input file referenced in the control file has a file extension.
Check the grid file format is supported. If using the binary files, .xf4 is to be used with single precision and .xf8 with double precision executable. The XF file may have been created by a previous (beta) version of TUFLOW or may have been corrupted. Deleting this file will cause TUFLOW to recreate it the next time the simulation is started.


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