Error running Unsteady Flow 2D model

[SimonD]

When I try to run an unsteady flow simulation in a 2D model, I am getting an error message after the goemetric preprocessor finishes. I tried searching for this specific error message but I couldn’t find anything. I also double checked for language and date settings, everything is set correctly.

Has anyone encountered this erro message in the past ?

Performing Unsteady Flow Simulation HEC-RAS 5.0.1 April 2016

HDF_ERROR trying to use HDF output file
Subroutine HDF_OPEN_Q2D

Unsteady flow encountered an error.

HDF5-DIAG: Error detected in HDF5 (1.8.11) thread 0:
#000: ..\..\src\H5L.c line 499 in H5Lcreate_hard(): no new name specified
major: Invalid arguments to routine
minor: Bad value

[cameron]

go and delete the hdf file it is trying to create and then run it again.

You could also try upgrading to 5.0.3

[SimonD]

I tried both 5.03 ans 5.01 and I get the exact same error. I also tried to delete HDF files, closing and re-opening HEC-RAS but I get the same error message.

I also tried to import the geometry file into a “clean” .prj file to make sure no intermediate files were in the way but I get the same error.

Still no luck…

[Anonymous]

*UPDATE: RESOLVED*

The issue was that a breakline in my model had a blank name, causing the simulation to stop right after the geometric preprocessor.

Deleting and redrawing said breakline solved the issue.

[Author]

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