Ok I got an error and I don't know how to fix. The stupid error goes like this:
“-fie zdoom.wad gbdemo.wad gbgfx.wad colmaps.wad -deh gbd2.deh”

Did anyone else get this error? AND WTF DOES IT MEAN!?!?!?

In windows explorer, right click the z-gbd2 file and select “edit”. a thing will open in notepad that says D:\games\doom2\zdoom.exe and then some stuff. Remove the D:\games\doom2\ part so it just starts with zdoom.exe and save it. it should work now.