ERROR: In /mnt/shuttles/shuttle/sak/klayout/tech/sky130A/met_density.lydrc: Unable to open file: /mnt/shuttles/shuttle/mpw-two/slot-004/caravel_dsp2/gds/caravel_00020004.gds.gz (errno=2) in Layout::read
ERROR: Unable to open file: /mnt/shuttles/shuttle/mpw-two/slot-004/caravel_dsp2/gds/caravel_00020004.gds.gz (errno=2) in Layout::read in MacroInterpreter::execute
  /mnt/shuttles/shuttle/sak/klayout/tech/sky130A/met_density.lydrc:3:in `execute_drc'
  :/built-in-macros/drc_interpreters.lym:18:in `instance_eval'
  :/built-in-macros/drc_interpreters.lym:18:in `execute_drc'
  :/built-in-macros/drc_interpreters.lym:65:in `execute'