Example 1 not working

[Turbomichi]

Hello all,

I tried to run example 1 but it gives me the error:
AssertionError: CalculiX result file not found, check your inputs
I'm not sure but it seems to stop right after starting.
the Plane_mesh.inp file is in the beso-master folder.
Python is python 3.12.2

If I do other FEM calculations without Topology Optimization it works fine and calculix is able to run as it should.

OS: Windows 11 build 22631
Architecture: x86_64
Version: 1.0.0.39109 (Git) Conda
Build type: Release
Branch: (HEAD detached at 1.0.0)
Hash: 2fcc5317fe3aee96ca73475986a577719fc78e20
Python 3.11.10, Qt 5.15.15, Coin 4.0.3, Vtk 9.3.0, OCC 7.8.1
Locale: German/Germany (de_DE)
Stylesheet/Theme/QtStyle: unset/FreeCAD Classic/Qt default
Installed mods:

• FreeCAD-themes 2025.1.7
• InventorLoader 1.5.1
• OpenTheme 2024.9.1
• sheetmetal 0.7.4

Greetings Michael

[fandaL]

Hello,
I should add a recommendation to the example 1 to use approach in the example 4, which should be easier to set up beso_conf file automatically through FreeCAD gui.
I have just tested example 1 on windows and it works. Maybe you can check path_calculix in the beso_conf. I used:
path_calculix = "C:\\Program Files\\FreeCAD 1.0\\bin\\ccxx"
If you follow example 4, path_calculix should be automatically generated.

[Turbomichi]

Thank you for the response. I'll try it out.
I just tested example 1 on a different machine, where I have root privilige. Could the problem be some non-given writing rights and it does not start writing the *.inp files?

[fandaL]

...Could the problem be some non-given writing rights and it does not start writing the *.inp files?

Maybe, if file000.inp is missing in the working folder?