Oh, it runs!! so easy and so quick, no words. Thank you very much for your interest and help!

Ups... let's try again...
sorry

Of course, please find .FCStd and meshcase here:

https://www.dropbox.com/sh/zkeaacfry20s ... oh6Va?dl=0

Thanks in advance!

Hi, Just landed to freecad and this workbench. After installing v0.19 and CfdOF I got results for the first case. But now, I have made a new geometry to solve a free surface case with water and air. However, when I write the case I get this error: 0.0: Error writing case: 0.0: AttributeError: 'Featu...