trying to install Ros2 on Ubuntu 20.04, but it doesn't work
I installed recently ubuntu 20.04 version, and I can't install any version of ros2, because I keep getting the same error. E: The repository 'http://packages.ros.org/ros2/ubuntu jammy InRelease' is not signed.
I tried so many steps to fix it, but still that happens. I'm new on thing.