Yu Bi
Ansys Employee

Hi, those errors are caused by the imported geometry not matching the Aqwa requirements for model geometry. Please check in the SpaceClaim/Design Modeller if there are any overlapped surfaces, T-shape or X-shape cross-section junctions between surfaces. Also, if possible, try to use the SpaceClaim repair tool to repair your geometry, e.g. stitch the surfaces, check duplicates, repair curves, etc. I hope those will solve your problem.