why?

[jiafengshen]

root@huawei:~/project/robot/MM3DGS-SLAM# python3 scripts/bag2data.py --path ./datasets/UTMM_Dataset --scene ego-centric-1
bag_file_path: ./datasets/UTMM_Dataset/ego-centric-1/2024-01-31-17-16-48_0.bag
Topics in the bag file:
/imu/data
/imu/data_raw
/imu/mag
/imu_filter/parameter_descriptions
/imu_filter/parameter_updates
/microstrain/imu/data
/microstrain/mag
/microstrain/nav/filtered_imu/data
/microstrain/nav/heading
/microstrain/nav/heading_state
/microstrain/nav/odom
/microstrain/nav/status
/ouster/imu
/ouster/points
/ouster/range_image
/realsense/color/camera_info
/realsense/color/image_raw/compressed
/realsense/depth/camera_info
/realsense/depth/image_rect_raw
/tf
/tf_static
/vrpn_client_node/Jackal_Latest/accel
/vrpn_client_node/Jackal_Latest/pose
/vrpn_client_node/Jackal_Latest/twist
Reading camera intrinsics
Reading transformations
Traceback (most recent call last):
File "scripts/bag2data.py", line 175, in
read_bag(bag_file_path, rgb_path, depth_path)
File "scripts/bag2data.py", line 52, in read_bag
tf_listener = tf.TransformListener()
File "/opt/ros/noetic/lib/python3/dist-packages/tf/listener.py", line 367, in init
self._listener = tf2_ros.TransformListener(self._buffer)
File "/opt/ros/noetic/lib/python3/dist-packages/tf2_ros/transform_listener.py", line 54, in init
self.last_update = rospy.Time.now()
File "/opt/ros/noetic/lib/python3/dist-packages/rospy/rostime.py", line 155, in now
return get_rostime()
File "/opt/ros/noetic/lib/python3/dist-packages/rospy/rostime.py", line 190, in get_rostime
raise rospy.exceptions.ROSInitException("time is not initialized. Have you called init_node()?")
rospy.exceptions.ROSInitException: time is not initialized. Have you called init_node()?
Exception ignored in: <function TransformListener.del at 0x783ad7dbce50>
Traceback (most recent call last):
File "/opt/ros/noetic/lib/python3/dist-packages/tf2_ros/transform_listener.py", line 60, in del
self.unregister()
File "/opt/ros/noetic/lib/python3/dist-packages/tf2_ros/transform_listener.py", line 66, in unregister
self.tf_sub.unregister()
AttributeError: 'TransformListener' object has no attribute 'tf_sub'