AttributeError: 'NET_FT' object has no attribute '_streaming'

[TONiiV]

After setting up the ip and try to rosrun the script, this shows up:

  File "/home/awi/catkin_ws/src/ati_sensor_ros_driver/include/ati_sensor_ros_driver/rpi_ati_net_ft.py", line 78, in read_device_settings
    raise Exception('ATI Net F/T must use MKS units')
Exception: ATI Net F/T must use MKS units
Exception ignored in: <bound method NET_FT.__del__ of <ati_sensor_ros_driver.rpi_ati_net_ft.NET_FT object at 0x7f9d51bcb128>>
Traceback (most recent call last):
  File "/home/awi/catkin_ws/src/ati_sensor_ros_driver/include/ati_sensor_ros_driver/rpi_ati_net_ft.py", line 184, in __del__
    if (self._streaming):
AttributeError: 'NET_FT' object has no attribute '_streaming'

But when I quickly check the NET_FT class, self._streaming is there and set to be False in initialization.