Warning when running Calibre PERC

Dear All,

I got below warning when running Calibre PERC and I think there should be some problem as I cannot get the expected result, Is there anyone can provide advise on it?

PERC LDL: IMPORT PERC:

PERC LDL: NOTE - Importing "NET" data from PERC for "Check_MOS_Port"

PERC LDL: IMPORT PERC COMPLETE.  CPU TIME = 0  REAL TIME = 0 LVHEAP = 16/17/17  MALLOC = 118/118/118  ELAPSED TIME = 8

PERC LDL: SELECT NETS:

PERC LDL: NOTE - Selecting nets on layer metal1_perc for check type 'Check_MOS_Port' with net table

::ldl::ldl_nets. Saving selected nets to layer MOS_METAL1_SELECT.

WARNING: Cannot find net X18/X30/X0/X1/X32/X1/X32/11 in cell d4pa2. Skipping.

WARNING: Cannot find net X28/X37/X0/X1/X32/X1/X32/11 in cell d4pa2. Skipping.

WARNING: Cannot find net X28/X37/X0/X1/X32/X1/X32/12 in cell d4pa2. Skipping.

WARNING: Cannot find net X28/X38/X0/X1/X32/X1/X32/11 in cell d4pa2. Skipping.

WARNING: Cannot find net X28/X37/X0/X1/X32/X1/8 in cell d4pa2. Skipping.

WARNING: Cannot find net X18/X30/X0/X1/X32/X1/8 in cell d4pa2. Skipping.

WARNING: Cannot find net X28/X38/X0/X1/X32/X1/X32/12 in cell d4pa2. Skipping.

WARNING: Cannot find net X28/X37/X0/X1/X32/X1/9 in cell d4pa2. Skipping.

WARNING: Cannot find net X18/X30/X0/X1/X32/X1/9 in cell d4pa2. Skipping.

WARNING: Cannot find net X18/X34/X0/X1/X32/X1/X32/11 in cell d4pa2. Skipping.

WARNING: Cannot find net X18/X34/X0/X1/X32/X1/8 in cell d4pa2. Skipping.

WARNING: Cannot find net X18/X34/X0/X1/X32/X1/9 in cell d4pa2. Skipping.

WARNING: Cannot find net X28/X38/X0/X1/X32/X1/8 in cell d4pa2. Skipping.

WARNING: Cannot find net X28/X38/X0/X1/X32/X1/9 in cell d4pa2. Skipping.

Promoting nets to context cell PERC LDL:

WARNING - Cannot find the path context for net X18/X30/X0/X1/X32/X1/X32/11 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X28/X37/X0/X1/X32/X1/X32/11 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X28/X37/X0/X1/X32/X1/X32/12 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X28/X38/X0/X1/X32/X1/X32/11 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X28/X37/X0/X1/X32/X1/8 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X18/X30/X0/X1/X32/X1/8 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X28/X38/X0/X1/X32/X1/X32/12 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X28/X37/X0/X1/X32/X1/9 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X18/X30/X0/X1/X32/X1/9 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X18/X34/X0/X1/X32/X1/X32/11 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X18/X34/X0/X1/X32/X1/8 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X18/X34/X0/X1/X32/X1/9 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X28/X38/X0/X1/X32/X1/8 in cell d4pa2.

PERC LDL: WARNING - Cannot find the path context for net X28/X38/X0/X1/X32/X1/9 in cell d4pa2.

PERC LDL: SELECT NETS COMPLETE.  CPU TIME = 1  REAL TIME = 1 LVHEAP = 18/25/25  MALLOC = 130/130/130  ELAPSED TIME = 9

PERC LDL: SELECT NETS: PERC LDL: NOTE - Selecting nets on layer metal2_perc for check type 'Check_MOS_Port' with net table ::ldl::ldl_nets.

Saving selected nets to layer MOS_METAL2_SELECT. PERC LDL: SELECT NETS COMPLETE.  CPU TIME = 0  REAL TIME = 0 LVHEAP = 19/25/27  MALLOC = 130/130/130  ELAPSED TIME = 10