Running on ROS2 Rolling Jammy

[ijnek]

The following error occurs when running

• ros2 run rqt_bag rqt_bag or
• rqt and adding the rqt bag widget manually

PluginManager._load_plugin() could not load plugin "rqt_bag/Bag":
Traceback (most recent call last):
  File "/opt/ros/rolling/lib/python3.10/site-packages/qt_gui/plugin_handler.py", line 102, in load
    self._load()
  File "/opt/ros/rolling/lib/python3.10/site-packages/qt_gui/plugin_handler_direct.py", line 55, in _load
    self._plugin = self._plugin_provider.load(self._instance_id.plugin_id, self._context)
  File "/opt/ros/rolling/lib/python3.10/site-packages/qt_gui/composite_plugin_provider.py", line 72, in load
    instance = plugin_provider.load(plugin_id, plugin_context)
  File "/opt/ros/rolling/lib/python3.10/site-packages/qt_gui/composite_plugin_provider.py", line 72, in load
    instance = plugin_provider.load(plugin_id, plugin_context)
  File "/opt/ros/rolling/lib/python3.10/site-packages/rqt_gui_py/ros_py_plugin_provider.py", line 69, in load
    return super(RosPyPluginProvider, self).load(plugin_id, ros_plugin_context)
  File "/opt/ros/rolling/lib/python3.10/site-packages/qt_gui/composite_plugin_provider.py", line 72, in load
    instance = plugin_provider.load(plugin_id, plugin_context)
  File "/opt/ros/rolling/lib/python3.10/site-packages/rqt_gui/ros_plugin_provider.py", line 107, in load
    return class_ref(plugin_context)
  File "/home/ijnek/Downloads/tmp/soccer_vision_msgs_layers_ws/build/rqt_bag/src/rqt_bag/bag.py", line 58, in __init__
    self._widget = BagWidget(context, args.clock)
  File "/home/ijnek/Downloads/tmp/soccer_vision_msgs_layers_ws/build/rqt_bag/src/rqt_bag/bag_widget.py", line 84, in __init__
    self._timeline = BagTimeline(context, publish_clock)
  File "/home/ijnek/Downloads/tmp/soccer_vision_msgs_layers_ws/build/rqt_bag/src/rqt_bag/bag_timeline.py", line 111, in __init__
    self._timeline_frame = TimelineFrame(self)
  File "/home/ijnek/Downloads/tmp/soccer_vision_msgs_layers_ws/build/rqt_bag/src/rqt_bag/timeline_frame.py", line 131, in __init__
    self._topic_font.setPointSize(self._topic_font_size)
TypeError: setPointSize(self, int): argument 1 has unexpected type 'float'

Environment:

OS: Ubuntu22.04 Jammy
Distro: Rolling
ROS Installation Method: Binary

This is a detailed example for https://github.com/ros-visualization/rqt/issues/266. Although this can be resolved in rqt_bag by ensuring the argument type matches that expected by the method (ie. self._topic_font.setPointSize(int(self._topic_font_size)) or self._topic_font.setPointSizeF(self._topic_font_size)) the issue exists in quite a lot of places for rqt_bag, and will very likely exist across any library that depends on python_qt_binding.

I've put up a branch that seems to work (for at least some basic preliminary testing).

[ivanpauno]

https://github.com/ros-visualization/rqt_bag/pull/109 should've fixed the issue. A new release is needed to get the issue fixed when installing from debians.

[ijnek]

I think #109 has enough changes to get rqt_bag up and running, but there are more changes required to prevent runtime errors. Some of those are covered in https://github.com/ijnek/rqt_bag/commit/a0286d91f9e4618c0eeb0f03299625b7134766a9 and involve data types being casted to the expected type before being passed to methods. The reason I haven't raised a PR is that I haven't tried going through rqt_bag to identify all problems. I can't guarantee that there are loads of other issues.

Could we either re-open or open another issue to track these?

[geoeo]

I installed ros2 rolling via the apt (which comes with rqt_bag) and its definitely not fixed.

Traceback (most recent call last):
  File "/opt/ros/rolling/local/lib/python3.10/dist-packages/qt_gui/plugin_handler.py", line 102, in load
    self._load()
  File "/opt/ros/rolling/local/lib/python3.10/dist-packages/qt_gui/plugin_handler_direct.py", line 55, in _load
    self._plugin = self._plugin_provider.load(self._instance_id.plugin_id, self._context)
  File "/opt/ros/rolling/local/lib/python3.10/dist-packages/qt_gui/composite_plugin_provider.py", line 72, in load
    instance = plugin_provider.load(plugin_id, plugin_context)
  File "/opt/ros/rolling/local/lib/python3.10/dist-packages/qt_gui/composite_plugin_provider.py", line 72, in load
    instance = plugin_provider.load(plugin_id, plugin_context)
  File "/opt/ros/rolling/lib/python3.10/site-packages/rqt_gui_py/ros_py_plugin_provider.py", line 69, in load
    return super(RosPyPluginProvider, self).load(plugin_id, ros_plugin_context)
  File "/opt/ros/rolling/local/lib/python3.10/dist-packages/qt_gui/composite_plugin_provider.py", line 72, in load
    instance = plugin_provider.load(plugin_id, plugin_context)
  File "/opt/ros/rolling/lib/python3.10/site-packages/rqt_gui/ros_plugin_provider.py", line 107, in load
    return class_ref(plugin_context)
  File "/opt/ros/rolling/lib/python3.10/site-packages/rqt_bag/bag.py", line 58, in __init__
    self._widget = BagWidget(context, args.clock)
  File "/opt/ros/rolling/lib/python3.10/site-packages/rqt_bag/bag_widget.py", line 84, in __init__
    self._timeline = BagTimeline(context, publish_clock)
  File "/opt/ros/rolling/lib/python3.10/site-packages/rqt_bag/bag_timeline.py", line 111, in __init__
    self._timeline_frame = TimelineFrame(self)
  File "/opt/ros/rolling/lib/python3.10/site-packages/rqt_bag/timeline_frame.py", line 131, in __init__
    self._topic_font.setPointSize(self._topic_font_size)
TypeError: setPointSize(self, int): argument 1 has unexpected type 'float'

[clalancette]

I've opened #111 to track the ongoing work.