icc_shell> create_net -power {VDD33 VSSD}Error: Net 'VDD33' already exists in design 'i2c_pad'. (UIED-13)
icc_shell> derive_pg_connection -power_net DVDD -power_pin DVDD -ground_net DVSS -ground_pin DVSS
Error: Pin name DVDD specified by power_pin or ground_pin option is invalid. (MWUI-715)
Error: Pin name DVSS specified by power_pin or ground_pin option is invalid. (MWUI-715)
Error: derive_pg_connection failed