Help with I2c.h

Hi !
I have a Accelerometer and Gyro (SEN 11028 ). I have taken the program from Sparkfun (he is name accgyro.ino under). I must instal i2c.h but after arduino says me when I will check up this error message ( He is very long so he is in pdf).
I’m lost, somebody can help me please ?
Sorry for my English, It’s not my mother language :slight_smile:

Thanks
Victor

Error message.pdf (57.1 KB)

accgyro.ino (6.01 KB)