sv2v having issue during make openroad-sky130

[Wiki1998-dev]

After following the steps in documentation when i do openroad-sky130 the following error shows : DEBUG: pre_build script 'sv2v_in_place': ['python3', 'util/sv2v_in_place.py', '--incdir-list=incdirs.txt', '--define-if=prim:SYNTHESIS', '--sv2v=sv2v', '--verbose', '--merge', 'files.txt', '-DCOCOTB_SIM=1', '-DSYNTHESIS=1', '-DVERILATOR=1'] exited with error code 1 ERROR: Failed to build openhwgroup.org:systems:core-v-mini-mcu:0 : pre_build script 'sv2v_in_place': ['python3', 'util/sv2v_in_place.py', '--incdir-list=incdirs.txt', '--define-if=prim:SYNTHESIS', '--sv2v=sv2v', '--verbose', '--merge', 'files.txt', '-DCOCOTB_SIM=1', '-DSYNTHESIS=1', '-DVERILATOR=1'] exited with error code 1

I am new in this domain ,can please guide me why is the issue?