ros2 run line_follower line_follower > STELLA_N1_Forum

• 목록

STELLA N1 SBC 버전: pi

REMOTE PC 버전: ubuntu 20.04

ROS 버전: foxy

안녕하세요 https://blog.naver.com/idea_robot/223202001154 진행중에 있는데 카메라 캘리브레이션 진행 후
ros2 run line_follower line_follower 진행 시  아래와 같이 오류가 발생하는데 해결방법이 있을까요 ?

jungjooyoo@jungjooyoo-B660M-HD3P:~/stella_ws$ ros2 run line_follower line_follower
Traceback (most recent call last):
  File "/home/jungjooyoo/stella_ws/install/line_follower/lib/python3.8/site-packages/line_follower/line_follower.py", line 148, in process_image
    self.left_fitx, self.left_fit = self.fit_from_lines(self.left_fit, cv_yellow_lane)
AttributeError: 'LineFollower' object has no attribute 'left_fit'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/jungjooyoo/stella_ws/install/line_follower/lib/line_follower/line_follower", line 33, in <module>
    sys.exit(load_entry_point('line-follower==0.0.0', 'console_scripts', 'line_follower')())
  File "/home/jungjooyoo/stella_ws/install/line_follower/lib/python3.8/site-packages/line_follower/line_follower.py", line 700, in main
    rclpy.spin(node)
  File "/opt/ros/foxy/lib/python3.8/site-packages/rclpy/__init__.py", line 191, in spin
    executor.spin_once()
  File "/opt/ros/foxy/lib/python3.8/site-packages/rclpy/executors.py", line 719, in spin_once
    raise handler.exception()
  File "/opt/ros/foxy/lib/python3.8/site-packages/rclpy/task.py", line 239, in __call__
    self._handler.send(None)
  File "/opt/ros/foxy/lib/python3.8/site-packages/rclpy/executors.py", line 429, in handler
    await call_coroutine(entity, arg)
  File "/opt/ros/foxy/lib/python3.8/site-packages/rclpy/executors.py", line 354, in _execute_subscription
    await await_or_execute(sub.callback, msg)
  File "/opt/ros/foxy/lib/python3.8/site-packages/rclpy/executors.py", line 118, in await_or_execute
    return callback(*args)
  File "/home/jungjooyoo/stella_ws/install/line_follower/lib/python3.8/site-packages/line_follower/line_follower.py", line 161, in process_image
    self.left_fitx, self.left_fit = self.sliding_windown(cv_yellow_lane, 'left')
  File "/home/jungjooyoo/stella_ws/install/line_follower/lib/python3.8/site-packages/line_follower/line_follower.py", line 441, in sliding_windown
    midpoint = np.int(histogram.shape[0] / 2)
  File "/home/jungjooyoo/.local/lib/python3.8/site-packages/numpy/__init__.py", line 305, in __getattr__
    raise AttributeError(__former_attrs__[attr])
AttributeError: module 'numpy' has no attribute 'int'.
`np.int` was a deprecated alias for the builtin `int`. To avoid this error in existing code, use `int` by itself. Doing this will not modify any behavior and is safe. When replacing `np.int`, you may wish to use e.g. `np.int64` or `np.int32` to specify the precision. If you wish to review your current use, check the release note link for additional information.
The aliases was originally deprecated in NumPy 1.20; for more details and guidance see the original release note at:
    https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations