Error window: local variable xobj referenced before assignment

[aziz_barzuk]

Hello,
Unfortunately, during the steps after the mesh generation with linear quad elements, I get this error when I try to launch the analysis:

https://ibb.co/nNchxXrW


From a first sight seems that some element miss the physical properties. But I gave it to all elements before.

I noted that the error depends from the element chosen that in this case is the quadUP.
But If I change geometry with a more simple one, all is good.

This is the mesh I try to model and seems that all the elements are linked in the right way:

https://ibb.co/bgjkZFsn


I tried to constrain the mesh by slicing the domain before to perform the mesh, but this error I get is quite strange.
Another error I get is about the number or the type of element.

What is the correct and the best way to import a domain from cad (i.e. in iges format) ?
Is there a correct procedure to follow ?

Thanks in advance.

[STKO Team]

Yes this means that you did not assign a physical property on a sub-geometry where you have that physical property.
Without the model I cannot tell where it is

[aziz_barzuk]

Ok, thank you.
I solved, probably the problem was about the selection method.
But it would be nice to know something about the best way to import a user defined geometry arranged with a cad o something else.

Thanks.

[STKO Team]

There is the Import command, it accepts STEP IGES or BREP