bugs during running the incompressible optimization for the airfoil

[MachAeroDeveloper]

h ave two problem professor
1- i use the same runscript.py for naca0012 airfoil after i chnage the airfoil of s809 and everything is working which i have been changed the coordinate of airfoil and the ffd point and the mesh and every thing working fine till i get this error i hope you help me on this problem and a appreciate your reply and help and thank you advanced
2- the file paraview.foam is empty and can not give any result of my optimization

[friedenhe]

It seems that your case converged without an error. The message you saw is a warning. ParaView.foam is a dummy file. Please check the DAFoam workshop slides and videos to get the basics of post-processing.

[MachAeroDeveloper]

thank you so much , i copy the folder to the windows and everything is working fine ,but the paraview on the linex ubunto not working and no show any result .

[friedenhe]

Please follow "Get Started" section from https://dafoam.github.io to do post-processing.