When geometry is changed and updated in meshing, such message may come in if you have given sizing or any other controls to some faces. While changing geometry if face numbers are changed internally this message may come in. Please check the sizing or inflation etc you have applied. If these are ok, you can proceed to mesh.
Please go through help manual for more details
Regards,
Keyur
How to access Ansys Online Help Document
Guidelines on the Student Community
Fluids Engineering Courses | Ansys Innovation Courses