SSD1306 OLED dipslay on olimexino STM32

So you're using the olimexino binary with it? I'm afraid those boards just don't have enough Flash to fit the graphics library in - you'll find that other modules (that don't use graphics) will work though.

You could probably fake it by adding some code like:

Graphics = { createArrayBuffer:function(w,h,b,o) {
  return { buffer : new Uint8Array(w*h/8) };
});

But then you'd have to set the pixels in g.buffer manually in order to do anything useful.

You could also build your own firmware which has the filesystem support removed, but graphics support added instead.

Or... you could buy a proper Espruino board in, which has enough flash to fit everything in by default ;)