<html><head></head><body><div>Hi,</div><div><br></div><div>I have encountered an error. I have done the 3D meshing completed. Everything looks fine. But after save it as .msh file and re-run the 3D mesh, the error appears.</div><div><br></div><div>Error: No tetrahedra in region 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21</div><div><br></div><div>Initially, I was intended to import file to OpenFOAM. Error appear too. So I decided to open the msh file in gmsh to check. </div><div><br></div><div>I don't understand. the geo file shows no error at all. Save in msh error prone.</div><div><br></div><div>I need your advice to resolve the issue urgently.</div><div><br></div><div>Many Thanks.</div><div><br></div><div>Regards,</div><div>Kelvin Xu<br><span></span><br></div><div class="ydp4fbf5d4dyahoo-style-wrap" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 10px;"></div></body></html>