Keyur Kanade
Ansys Employee
In some cases - although the surface of the body seems to be meshed the volume inside the body may not get meshed. That's why one observes the error message about no elements. Since it complains about the mesh based defeaturing disable it and then redo the mesh. The defeaturing setting can be found in Advanced settings under Mesh or in the details of the inserted meshing method such as MultiZone method.