@User This has been reported several times. Should be fixed in the current release (make sure you've cloned https://github.com/The-OpenROAD-Project/OpenLane and not https://github.com/efabless/OpenLane ). If you don't want to reinstall all the programs, Matt Venn's solution is the simplest, I believe. https://skywater-pdk.slack.com/archives/C016UL7AQ73/p1628603447100600?thread_ts=1628586195.098000&cid=C016UL7AQ73