关于rqt在ROS Melodic中正常在Noetic报错的问题

问题描述

运行

rqt --perspective-file src/SmartEdgeSensor3DHumanPose/pose_hall.perspective

报错

Traceback (most recent call last):
  File "/opt/ros/noetic/lib/rqt_gui/rqt_gui", line 13, in <module>
    sys.exit(main.main())
  File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/main.py", line 61, in main
    return super(
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/main.py", line 614, in main
    perspective_manager.import_perspective_from_file(
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/perspective_manager.py", line 360, in import_perspective_from_file
    self._convert_values(data, self._import_value)
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/perspective_manager.py", line 422, in _convert_values
    self._convert_values(groups[group], convert_function)
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/perspective_manager.py", line 422, in _convert_values
    self._convert_values(groups[group], convert_function)
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/perspective_manager.py", line 422, in _convert_values
    self._convert_values(groups[group], convert_function)
  [Previous line repeated 1 more time]
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/perspective_manager.py", line 419, in _convert_values
    keys[key] = convert_function(keys[key])
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/perspective_manager.py", line 429, in _import_value
    return QByteArray.fromHex(eval(value['repr(QByteArray.hex)']))
  File "<string>", line 1, in <module>
TypeError: arguments did not match any overloaded call:
  QByteArray(): too many arguments
  QByteArray(int, str): argument 1 has unexpected type 'str'
  QByteArray(Union[QByteArray, bytes, bytearray]): argument 1 has unexpected type 'str'

解决方法

just change "QtCore.QByteArray('000000..." to "QtCore.QByteArray(b'000000..." by adding a "b".