Krzysztof Herman
11/03/2021, 1:58 PMFile "/openlane/scripts/write_powered_def.py", line 95, in <module>
assert VDD_PORTS and GND_PORTS, "No power ports found at the top-level. "\
AssertionError: No power ports found at the top-level. Make sure that they exist and have the USE POWER|GROUND
ort.