Error message: HID project can only be used with an USB MCU

Hello!
I'm trying to upload a sketch to my Arduino UNO that allows it to receive signals from a GameCube controller and be used as a USB-device. I have followed every step on this page: GitHub - NicoHood/HID: Bring enhanced HID functions to your Arduino! but I keep getting this error:

Arduino:1.7.10 (Mac OS X), Card:"Arduino Uno"

Build options changed, rebuilding all
In file included from Gamecube_USB_HID.ino:1:0: 
/Users/myName/Documents/Arduino/libraries/HID-master/src/HID-Project.h:35:2: error: #error HID Project     can only be used with an USB MCU.
 #error HID Project can only be used with an USB MCU.
  ^
In file included from /Users/nyName/Documents/Arduino/libraries/HID-master/src/HID-Project.h:39:0,
                 from Gamecube_USB_HID.ino:1:
/Users/myName/Documents/Arduino/libraries/HID-master/src/SingleReport/SingleAbsoluteMouse.h:28:26:     fatal error: PluggableUSB.h: No such file or directory
 #include "PluggableUSB.h"
                          ^
compilation terminated.

Does anyone know how to fix this? I thought that the Arduino UNO had an MCU with the HoodLoader2.
Thank you very much for your time.
All the best,
LeChiffre

I thought that the Arduino UNO had an MCU with the HoodLoader2.

Only if you install it I would think.

UKHeliBob:
Only if you install it I would think.

Thank you for your response. I have installed it, when I open up the System reports (I'm on Mac OS) I see this:Zoinks! You've taken a wrong turn.

Select the correct HoodLoader2 entry from the Tools > Board menu, it's probably HoodLoader2 16u2 for the Uno.

Note that you're using the arduino.org IDE which most likely the author NicoHood has not tested their code with. If you have further troubles try it with the arduino.cc IDE 1.6.9 http://www.arduino.cc/en/Main/Software.

pert:
Select the correct HoodLoader2 entry from the Tools > Board menu, it's probably HoodLoader2 16u2 for the Uno.

Note that you're using the arduino.org IDE which most likely the author NicoHood has not tested their code with. If you have further troubles try it with the arduino.cc IDE 1.6.9 http://www.arduino.cc/en/Main/Software.

Thank you very much for your answer! I think I have done something wring since I can't seem to find the board. Am I looking in the right place or may I have installed the HoodLoader 2 the wrong way? Arduino List - Album on Imgur

Did you install the boards definitions by following the Boards Manager or Manual installation instructions on this page: Software Installation · NicoHood/HoodLoader2 Wiki · GitHub?