This error means that your X display is running with paletted colors, which is the result of limited color depth. If you start the X display with startx !-- -bpp 16 or some higher number, then it should work fine.
32-bit color is the best.
startx !-- -bpp 16
puredata.info is hosted and serviced by IEM as a contribution to the Pd-community using
, see Impressum.