Flair plot error

Dear FLUKA and Flair experts,

I am new to FLUKA and Flair. I successfully installed FLUKA and Flair on Windows 10, as well as on Ubuntu. It seemed to me that everything was running properly, but I have found a problem. I was trying to run the “FLUKA tutorial” from the official Flair site (this link). I got to the point 5 (Geometry Plotting) and when I press the “Plot” button I get an error:

I get the same error on both systems, Windows (WSL) and Ubuntu.I don’t know the reason for this. I know it may be a very simple issue, however I don’t know how to solve it. If you need more information, I can post the Output window messages.

Thank you very much for your help!

Dear Julian,

it seems, that you have a spaces in the path to your simulation. Remove them or replace them with underscores and please, try again.


Dear David,

Thank you very much for your help! After removing the spaces it works perfectly for me.

Best regards,