Hello everyone! Apparently it's a common problem but I could not find a solution that worked with my installation.

I'm using Ubuntu Focal Fossa, tried both ROS2 Foxy and Galactic but I can't get to rqt work.

I installed everything by apt and removed both PyQt5 and PyQt5-sip from pip3 as explained in some answers, but this still doesn't work for me.

Does anyone have any idea of what might be the problem?

Traceback (most recent call last): File "/opt/ros/galactic/bin/rqt", line 11, in loadentrypoint('rqt-gui==1.1.2', 'consolescripts', 'rqt')() File "/opt/ros/galactic/lib/python3.8/site-packages/rqtgui/main.py", line 87, in main sys.exit(Main().main()) File "/opt/ros/galactic/lib/python3.8/site-packages/rqtgui/main.py", line 57, in main return super( File "/opt/ros/galactic/lib/python3.8/site-packages/qtgui/main.py", line 408, in main from pythonqtbinding import QTBINDING File "/opt/ros/galactic/lib/python3.8/site-packages/pythonqtbinding/init.py", line 56, in from pythonqtbinding.bindinghelper import loadUi # noqa: F401 File "/opt/ros/galactic/lib/python3.8/site-packages/pythonqtbinding/bindinghelper.py", line 277, in _selectqtbinding( File "/opt/ros/galactic/lib/python3.8/site-packages/pythonqtbinding/bindinghelper.py", line 108, in selectqtbinding QTBINDINGVERSION = bindingloader(requiredmodules, optionalmodules) File "/opt/ros/galactic/lib/python3.8/site-packages/pythonqtbinding/bindinghelper.py", line 155, in _loadpyqt namedoptionalimport('PyQt5.%s' % modulename) File "/opt/ros/galactic/lib/python3.8/site-packages/pythonqtbinding/bindinghelper.py", line 142, in _namedoptionalimport _namedimport(name)

File "/opt/ros/galactic/lib/python3.8/site-packages/pythonqtbinding/bindinghelper.py", line 133, in _namedimport module = builtins.import(name) ValueError: PyCapsule_GetPointer called with incorrect name