I updated openlane to the

mpw-3a

tag, but I got the following error (it was fine before the update). I changed the

OPENLANE_TAG

and git url in

openlane/Makefile

, but do I need to do anything else?

Error: or_pdn_cfg.tcl, 23 can't read "::env(STD_CELL_POWER_PINS)": no such variable

Please update the pdk also.