I am new to openLane environment and trying to setup openLane at my laptop. While doing so I am following following link, https://openlane-docs.readthedocs.io/en/rtd-develop/ . I am facing following error (screenshot attache) when I run command "sudo make pdk". Looking forward to suggestions to overcome this error. I am using ubuntu 20.04.

If you intend to submit to one of the google shuttle runs, I recommend https://github.com/efabless/caravel_user_project/blob/main/docs/source/index.rst#section-quickstart

Please do not use old versions of openlane and openlane guide.