Errors on motherboard and heater_0_pin help

Projects Programming
1

I am very new to arduino and am trying to get a 3d printer up and running. I am running Marlin 1.1.0-RC7.

Any help is very much appreciated.

Here is the error msg I am getting...

Arduino: 1.6.12 (Windows 8.1), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"

In file included from sketch\MarlinConfig.h:33:0,

from C:\Users\User\Desktop\3D Printer\Firmware\Marlin\Marlin.ino:38:

pins.h:173: error: #error "Unknown MOTHERBOARD value set in Configuration.h"

#error "Unknown MOTHERBOARD value set in Configuration.h"

^

In file included from sketch\MarlinConfig.h:39:0,

from C:\Users\User\Desktop\3D Printer\Firmware\Marlin\Marlin.ino:38:

SanityCheck.h:540: error: #error "HEATER_0_PIN not defined for this board."

#error "HEATER_0_PIN not defined for this board."

^

exit status 1
#error "Unknown MOTHERBOARD value set in Configuration.h"

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

2 
#error "Unknown MOTHERBOARD value set in Configuration.h"

So, set the right value for MOTHERBOARD in Configuration.h!