abata's profile - activity

I run my code flawlessly in ROS Melodic but in ROS Noetic, I am having the following error (maybe because of python3):

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'

Any idea on this? Or have you encountered this before?

Thanks

Hi everyone,

I am new to ROS and ros_control and I don't know how to integrate my custom controller into to the ros_control package. I have implemented this tutorial and everything works OK. I can run default/existing controllers but I need to know how I can merge my new controller to the controller_manager. In my workspace within src folder, I have three folders: rrbot_control, rrbot_description, and rrbot_gazebo and each has its own CMakeLists.txt and package.xml files.

Right now I have a .cpp file of my new controller:

1) Where should I put it (in which folder)?

2) Shall I change CMakeLists.txt and package.xml files? and how?

I'm using ROS melodic and ubuntu 18.04. Thanks a lot for your help.

My launch file was using a .perspective file. Also, when I tried to load it manually in rqt. The same errors happened.

rqt_gui error in perspective manager in ROS noetic I run my code flawlessly in ROS Melodic but in ROS Noetic, I am havi

Change frame_id in InteractiveMarker topic/messages Hi, I am using UR5 in rviz with a marker at the end-effector, when I

Change frame_id in InteractiveMarker topic/messages Hi, I am using UR5 in rviz with a marker at the end-effector, when I

I found this video and it is the answer to my question :) Thanks.

Integrating custom controller to ros_control package Hi everyone, I am new to ROS and ros_control and I don't know how