Does anyone know how to make custom chess sets for Scid vs. PC?

Do you use Inkscape 0.92?
Could you perhaps share your SVG file? Also the the exact command that you are using.

PS: I tried Paul's SVG with Perl MSYS2 and now portable version of Strawberry Perl and both work for me.

I used the latest Inkscape which is 0.92.3. It's very nice that you got it to work; it gives me hope that I'll be able to get it eventually.

Could you give me the line that you typed in to get it to work? I remember trying with Paul's svg and not getting anything either.

The exact command that I tried is

c:\> perl create_piece_set.pl title="test" min=25 max=160 step=5 ink=("C:\Program Files\Inkscape\inkscape.exe") test.svg

I put both create_piece_set.pl and test.svg on my C drive.

Actually, just drop the whole ink thing, since executable is in default location and script will look it up. Also your min, max, step are default as well, so drop them as well. For now anyway.

So just:
perl create_piece_set.pl title="test" test.svg

Yeah, it works now. I wasn't running command prompt in administrator mode so it wasn't working.

Thank you for not giving up on me! I really appreciate it, man.

Sorry for wasting your time!! You're the best.

Yay! Glad it worked out for you :)