hey how to solve this Warning @Eric @Stefan Schippers

Fixing

Warning

may help. Also check #xschem slack channel

@Vijayan Krishnan you mean solution already available in #xschem

xschem is a tool for making schematics of analog/mixed/digital circuits. It also supports simulation backends and netlisting of the schematic. OpenLane is RTL2GDS flow that can make your digital verilog RTL code into digital layout (GDS)

@Arman Avetisyan Thank you

@Ashutosh Kumar did you install xschem building it from sources? the xschem packaged in ubuntu/debian/fedora distributions is too old, so remove it and install newer xchem from sources: https://github.com/StefanSchippers/xschem. Instructions to build here: https://xschem.sourceforge.io/stefan/xschem_man/install_xschem.html

yes @Stefan Schippers I successfully install xcshem from sources https://github.com/StefanSchippers/xschem using instructions from https://xschem.sourceforge.io/stefan/xschem_man/install_xschem.html but new problem arises while installing open_pdks after "make " command terminal closed by itself ,installing in Virtual machine (Linux) specification : 5Gb RAM , 4cpu and 100gb memory

@Ashutosh Kumar I think open_pdks maintainer is working hard to manage a new set of spice models (continuous models as opposed to binned models) that is about to be released. This means that the master branch may have some glitches. Ask @Tim Edwards if there is a previous commit to checkout, before the continuous model work started.