This error usually occurs when you have non-manifold geometries in the model. (or very thin bodies paired with large mesh).
right-click on the error message and show problematic geometry. If it doesn't manually inspect for nonmanifold and thin bodies in your model.
Also please post in a correct category (I am moving this thread to Mesh Generation).
Guidelines on the Student Community
How to access ANSYS help links
Please Login to Report Topic
Please Login to Share Feed