please help for floorplanning

xiaoyisimonguo

in ICC floorplanning run After import_designs successfully, import_designs -format verilog -top $TOP_design -cel $TOP_design {../ref/design_data/ORCA_timingRun.v} I tried to create floorplan: create_floorplan -control_type boundary -start_first_row -left_io2core 2.96 -bottom_io2core 2.96 -right_io2core 2.96 -top_io2core 2.96 -keep_io_place and I got the following: Error: There is no net in this design. Please fix this problem.  (APL-075) Error: Planner run through unsuccessful.  (APLUI-102) I don't understand this, the verilog netlist, ORCA_timingRun.v should have nets, should be a lot of those,  what can I fix, please help