Inflation, invalid method
 

Hallo,

I'm trying to use the tool 'Inflation'. I have made my mesh and I just need to add some inflation for the boundary layer around the blades. But, I always see under the 'Inflation-Definition-Active-No, Invalid Method'. After I've updated my mesh, a cross instead of a check Symbol beside the inflation on the Outline appeared. (see attachment)
When I tried to use with similar model, but without other Mesh Control-Method, the Inflation can be created. So my question is, can this inflation only be created, when tetrahedrons meshing is used on the Body? Thanks.

Best regards,
Darma Yuda