Unable to add VDD VSS pins to the verilog netlist generated by Encounter

Hi,

I am using encounter EDI 11.

I want add VDD VSS pins to verilog netlist, but so far I am unsuccessful .

I have tried the following two commands with options -includePowerGround and -phys

1. saveNetlist -flat -includePowerGround $env(VLOGOUT_DIR)/$env(TOP_LEVEL).pnr.v

Writing Netlist ".././vlogout/MY_VERILOG_TOP.pnr.v" ...
**WARN: (ENCVL-516):    No Power/Ground connections in top module (MY_VERILOG_TOP).
0 Pwr names and 0 Gnd names.

2.  saveNetlist -flat -phys $env(VLOGOUT_DIR)/$env(TOP_LEVEL).pnr.v
Writing Netlist ".././vlogout/MY_VERILOG_TOP.pnr.v" ...
**WARN: (ENCVL-516):    No Power/Ground connections in top module (MY_VERILOG_TOP).
0 Pwr names and 0 Gnd names.

Why is -phys option not working?

I am I doing something wrong here?

Is there any other way to add VDD VSS nets in verilog file?

Thanks in advance.