jill@SPXN4:~/tutorial_layout$ xschem tb_bandgap_opamp.sch Using run time directory XSCHEM_SHAREDIR = /usr/local/share/xschem Sourcing /usr/local/share/xschem/xschemrc init file Sourcing /home/jill/tutorial_layout/xschemrc init file Warning: PDK_ROOT env. var. not found or empty, trying to find an open_pdks install open_pdks installation: using /usr/local/share/pdk SKYWATER_MODELS: /usr/local/share/pdk/sky130A/libs.tech/combined SKYWATER_STDCELLS: /usr/local/share/pdk/sky130A/libs.ref/sky130_fd_sc_hd/spice setup_tcp_bespice: success : listening to TCP port: 2022 l_s_d(): Symbol not found: sky130_tests/passgate.sym l_s_d(): Symbol not found: sky130_fd_pr/cap_mim_m3_2.sym l_s_d(): Symbol not found: sky130_tests/not.sym l_s_d(): Symbol not found: sky130_fd_pr/corner.sym l_s_d(): Symbol not found: sky130_tests/zero_opamp.sym l_s_d(): Symbol not found: sky130_fd_pr/nfet_01v8.sym l_s_d(): Symbol not found: sky130_tests/gain_stage.sym %