Trouble with nunchuck in wiichuck library

Projects General Guidance
1

Hi guys i recently try to make a robotic arm with a wii nunchuk
so I download the wiichuck library from here: Tutorial 23 - Nunchuck Wii (2 di 3) (Arduino UNO) - YouTube
And i copy all the program here: Arduino Servo Nunchuck - Pastebin.com

But when i look the values on the serial port they are all the same ( -24 ).
It's the same even if I don't have any pin of the nunchuk linked with Arduino.
So can anyone of you help me?

I use Arduino Mega 2560
A original joystick of the wii
And jumpers (I don't use adaptors)

2

Then it's not communicating. Probably because you don't connect it the right way.