Problem with getting named selection in ANSYS FLUENT
 

I am working on a stepped airfoil project where i have created a mesh around it and named the section as inlet, outlet, airfoil and walls.

But in setup when i want to give boundary conditions the named selection are not available.

I found a thread here with the same problem and i got a solution where send to solver option was told to try and i tried it and still i am not able to get the named section in boundary conditions of setup.
I have attached mesh pics of my airfoil.
Please kindly help me with this case.:)