Problem of mesh

[Yasushi Morikawa]

Nice to meet you.

I use OpenVSP to design , and I am analyzing my model using VSPAERO.

The model analysis using VSPAERO is completed, 

but there is a message “Note … mesh may not be closed !“ in the bottom window.

Even if I run WingGeom alone, the message is indicated.

Then, I tried running the default WingGeom with only selecting “Thick Set” in the “Case Setup”.

As a result, that is completed ,but “Note … mesh may not be closed !“ is indicated in the window.

I use version 3.50.5. MacOS

What is the problem?

Could you please tell me how to resolve it.