compiling marlin for graphic display (no replies)

I'm trying to put a discount graphic display on my robo3d r1 plus. I downloaded from marlin the proper firmware. I take it to my arduino ide and it compiles with no errors. I commented out the LCD and uncommented the discount graphical display, and it faults out while compiling. I did include ( #include U8glib.h ). The compile faults out when I include U8glib.h. Even if I just comment out the LCD, the compile will fault out. I went to sketch and added my zip lib ( U8glib.h), and it shows at the bottom of my library list.
Please, any ideas how to get my discount graphics controller to work.