synopsys ICC usage

I am new for IC compiler, I could open my design in PartitionEditorWindow, and got layoutWindow like this screen capture:
but when I tried floorPlan
I got this error:
create_floorplan -core_aspect_ratio 1.6 -start_first_row -flip_first_row -left_io2core 0.5 -bottom_io2core 0.5 -right_io2core 0.5 -top_io2core 0.5
Fail to run Floorplanner due to failing to get unit's CellId！
Error: Planner run through unsuccessful.(APLUI-102)
0

Please help

Maybe you need a command like this:set_fp_options -unit_tile_name XXX.Please check your documents and maybe you can find the answer.

thank you for respondingsomehow my man page did not see "set_fp_options"

oh,maybe now it is the new one "set_fp_strategy"