Error no 121 IOError at ~$ rosrun jetbot_ros jetbot_motors.py

[Vernieface]

Observation:

file string is: /home/vern/workspace...

Rather than: /home/nvidia/workspace...

Terminal Session text follows:
vern@JetBotAI:$ rosrun jetbot_ros jetbot_motors.py
Traceback (most recent call last):
File "/home/vern/workspace/catkin_ws/src/jetbot_ros/scripts/jetbot_motors.py", line 75, in
motor_driver = Adafruit_MotorHAT(i2c_bus=1)
File "/home/vern/.local/lib/python2.7/site-packages/Adafruit_MotorHAT/Adafruit_MotorHAT_Motors.py", line 231, in init
self._pwm = PWM(addr, debug=False, i2c=i2c, i2c_bus=i2c_bus)
File "/home/vern/.local/lib/python2.7/site-packages/Adafruit_MotorHAT/Adafruit_PWM_Servo_Driver.py", line 59, in init
self.setAllPWM(0, 0)
File "/home/vern/.local/lib/python2.7/site-packages/Adafruit_MotorHAT/Adafruit_PWM_Servo_Driver.py", line 95, in setAllPWM
self.i2c.write8(self.__ALL_LED_ON_L, on & 0xFF)
File "/home/vern/.local/lib/python2.7/site-packages/Adafruit_GPIO/I2C.py", line 114, in write8
self._bus.write_byte_data(self._address, register, value)
File "/home/vern/.local/lib/python2.7/site-packages/Adafruit_PureIO/smbus.py", line 268, in write_byte_data
self._device.write(data)
IOError: [Errno 121] Remote I/O error
vern@JetBotAI:$

[santaimpersonator]

If you are using the SparkFun kit, refer to this response: #37 (comment)