Does not work on Melodic #27
Description
- Kubuntu 18.04
- ROS Melodic
$ dpkg -l | grep rqt_bag
ii ros-melodic-rqt-bag 0.4.12-0bionic.20180522.045045 amd64 rqt_bag provides a GUI plugin for displaying and replaying ROS bag files.
ii ros-melodic-rqt-bag-plugins 0.4.12-0bionic.20180522.162523 amd64 rqt_bag provides a GUI plugin for displaying and replaying ROS bag files.I can open a bag file but I cannot see any contents inside:
Exception in thread Thread-7:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
self.run()
File "/opt/ros/melodic/lib/python2.7/dist-packages/rqt_bag/timeline_cache.py", line 74, in run
msg_stamp, item = self.loader(topic, stamp, item_details)
File "/opt/ros/melodic/lib/python2.7/dist-packages/rqt_bag_plugins/image_timeline_renderer.py", line 160, in _load_thumbnail
msg_topic, msg, msg_stamp = bag._read_message(pos)
File "/opt/ros/melodic/lib/python2.7/dist-packages/rosbag/bag.py", line 1299, in _read_message
return self._reader.seek_and_read_message_data_record(position, raw)
TypeError: seek_and_read_message_data_record() takes exactly 4 arguments (3 given)
Exception in thread Thread-15:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
self.run()
File "/opt/ros/melodic/lib/python2.7/dist-packages/rqt_bag/message_loader_thread.py", line 83, in run
msg_data = self._get_message(bag, playhead_position)
File "/opt/ros/melodic/lib/python2.7/dist-packages/rqt_bag/message_loader_thread.py", line 96, in _get_message
msg_data = self.timeline.read_message(bag, position)
File "/opt/ros/melodic/lib/python2.7/dist-packages/rqt_bag/bag_timeline.py", line 481, in read_message
return bag._read_message(position)
File "/opt/ros/melodic/lib/python2.7/dist-packages/rosbag/bag.py", line 1299, in _read_message
return self._reader.seek_and_read_message_data_record(position, raw)
TypeError: seek_and_read_message_data_record() takes exactly 4 arguments (3 given)In the GUI:
- The thumbnails do not work
- The topics cannot be displayed as raw (the created panel stays empty)
- The topics cannot be displayed as images (the created panel stays empty)
- Plotting the data crashes
rqt_bag
Example bag file:
http://wiki.ros.org/ethzasl_sensor_fusion/Tutorials/getting_started?action=AttachFile&do=view&target=dataset.bag