attribute error in basic motion notebook (waveshare jetracer pro ai kit)

[0jeetparmar0]

i am using waveshare jetracer pro ai kit and i am getting this error using code from waveshare.

---

AttributeError Traceback (most recent call last)
in
1 from jetracer.nvidia_racecar import NvidiaRacecar
2
----> 3 car = NvidiaRacecar()

/usr/local/lib/python3.6/dist-packages/jetracer-0.0.0-py3.6.egg/jetracer/nvidia_racecar.py in init(self, *args, **kwargs)
19 def init(self, *args, **kwargs):
20 super(NvidiaRacecar, self).init(*args, **kwargs)
---> 21 self.kit = ServoKit(channels=16, address=self.i2c_address)
22 self.kit._pca.frequency = 60
23 self.steering_motor = self.kit.continuous_servo[self.steering_channel]

/usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_servokit-1.3.17-py3.6.egg/adafruit_servokit.py in init(self, channels, i2c, address, reference_clock_speed, frequency)
86 self._channels = channels
87 if i2c is None:
---> 88 i2c = board.I2C()
89 self._pca = PCA9685(
90 i2c, address=address, reference_clock_speed=reference_clock_speed

~/env/lib/python3.6/site-packages/board.py in I2C()
278 import busio
279
--> 280 return busio.I2C(SCL, SDA)
...
---> 65 elif chip_id == ap_chip.JH71x0:
66 from adafruit_blinka.microcontroller.starfive.JH71x0 import *
67 elif chip_id == ap_chip.SUN8I:

AttributeError: module 'adafruit_platformdetect.constants.chips' has no attribute 'JH71x0'

thanks