Heres my Configuration.h and the Error.
In file included from Extruder.cpp:23:
C:\#RepRap\Printrboard\arduino0022 Printrboard\arduino-0022\hardware\at90usb1286\cores\at90usb1286/pins_arduino.h:19: error: expected unqualified-id before numeric constant
C:\#RepRap\Printrboard\arduino0022 Printrboard\arduino-0022\hardware\at90usb1286\cores\at90usb1286/pins_arduino.h:22: error: expected unqualified-id before numeric constant
As you can tell I am running a printrboard and as far as I know I have to use the old aduino v0.22 so I changed the file extention from .ino to .pde