Trying one of the design with GF180 pdk and facing issue. https://github.com/The-OpenROAD-Project/OpenROAD/issues/2364 1. Found that

no_synth_cells

drc_exclude_cells

need to be updated in the PDK, as its using

__1

version standard cell causing more net dealy 2. Defined but missing: Missing variable path: set ::env(TRISTATE_BUFFER_MAP) "$::env(PDK_ROOT)/$::env(PDK)/libs.tech/openlane/$::env(STD_CELL_LIBRARY)/tribuff_map.v"