Abaqus - error (only one type of region may be selected at one time)

Hallo everyone,
I created this part geometry in Abaqus cae and then transported this file to hyperworks for meshing. After doing the transition mesh in hyperworks i exported the part to Abaqus cae. But when i defined the property and trying to assign the section in Abaqus .Abaqus is giving me this error (only one type of (cell,face or edge) may be selected at one time ). I am attaching the screenshot of geometry and the picture of error that i am getting .please find the attachment and give me some helpful suggestions in this regard