Does anyone encountered this problem in Xschem before? I'm confused as I imported the symbol and library both from the latest skywater/open_pdk

please send the full netlist file (your circuit name with .spice extension).

I was trying to open tsmc_bandgap_real.sch in this repo : https://github.com/johnkustin/bandgapReferenceCircuit/tree/main/schematics

@User I have downloaded the schematic, replaced all the .includes of skywater-pdk models with one single:

.lib $::SKYWATER_MODELS/sky130.lib.spice tt

and simulation went just fine. If it does not check the xschem_sky130 files (they are downloaded automatically by open_pdks), if they are too old refresh (git pull, make, make install) the open_pdks. I assume you now use xschem with the

open_pdks

install. Open_pdks takes care of installing all spice models applying patches where needed.

Exactly. It works now using ur method. Using open_pdks and cuting those .include lines make the design more clear. Thanks you :)