loading fluent data and turbo initialize in CFD post
 

after loading fluent data in cfd post, during turbo initialize error showing:
WARNING
Hub region is not defined for component 'fluid' in domain
'fluid'. Cannot initialize turbo post-processing module.
WARNING
Cannot initialize component 'fluid' in domain 'fluid'.
Please verify that the rotation axis and turbo regions are set correctly.

how can i solve this? because i can't see axial or tangential velocity.