MPU9250 Breakout Board. Problem with Initialization

I am using the MotionDriver Library provided by Invensense. When I attempt to initialize the device, the code exits with the message "mpu_init failed with code: -7"

When I dig into inv_mpu.cpp and find the error, i see:

#define MPU6500_MEM_REV_ADDR    (0x17)

if (mpu_read_mem(MPU6500_MEM_REV_ADDR, 1, &rev))

return -7;

I'm guessing that MPU6500_MEM_REV_ADDR (0x17) should have a different address than 0x17? But, I cannot find documentation on this anywhere.

Thanks