[Rizz]

When i try to import my works on fluent i have this error:

> Reading "C:\Users\User\Desktop\provapiani.msh"...
    9931 nodes.
    2120 mixed pressure-outlet faces, zone  3.
    2640 mixed pressure-inlet faces, zone  4.
     453 mixed velocity-inlet faces, zone  5.
     318 mixed pressure-outlet faces, zone  6.
    9087 mixed wall faces, zone  7.
   23667 mixed interior faces, zone  9.
   14298 tetrahedral cells, zone  2.

Building...
     grid,
Removing 2120 unreferenced faces, zone 3.
Removing 2640 unreferenced faces, zone 4.

 Warning: Number of nodes read (9931) does not match number referenced (4970).
 Resetting counter to match the number referenced.

     materials,
     interface,
     domains,
     zones,
    default-interior
    pprofilo
    buscita
    battacco
    Skipping zone ingresso (not referenced by grid).
    Skipping zone uscita (not referenced by grid).
    fluid
     shell conduction zones,
Done.

What does it means?

[-mAx-]

don't know, but it is linked with your BC
2120 mixed pressure-outlet faces, zone 3.
2640 mixed pressure-inlet faces, zone 4

This is just a warning
if the check mesh is ok, I assume you can continue (but I would check my BC)