Message 10203
TUFLOW FV
Available since version: 2026.2.0
Description
Raised when a file close operation returns a non-zero status for a file unit. The file unit number is reported in the message.
Suggestions
This is typically caused by a file system issue. Check available disk space and ensure the output directory remains accessible throughout the simulation.
Typically the file unit number can be traced by an earlier message reporting the file name and unit number when the file was opened. This can be used to help identify the file that failed to close. If storage or directory access issues appears unlikely, check the file for corruption or other issues that may have prevented it from being closed successfully.