The repository does not have a Release file.
Installing Humble Hawksbill on Ubuntu Jammy 22.04 in virtualbox. Following instructions from http://docs.ros.org/en/humble/Install...
lennart@ml-dev:~$ sudo apt update && sudo apt install -y \
build-essential \
cmake \
git \
python3-colcon-common-extensions \
python3-flake8 \
python3-flake8-blind-except \
python3-flake8-builtins \
python3-flake8-class-newline \
python3-flake8-comprehensions \
python3-flake8-deprecated \
python3-flake8-docstrings \
python3-flake8-import-order \
python3-flake8-quotes \
python3-pip \
python3-pytest \
python3-pytest-cov \
python3-pytest-repeat \
python3-pytest-rerunfailures \
python3-rosdep \
python3-setuptools \
python3-vcstool \
wget
Hit:1 http://no.archive.ubuntu.com/ubuntu jammy InRelease
Get:2 http://no.archive.ubuntu.com/ubuntu jammy-updates InRelease [109 kB]
Get:3 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
Get:4 http://no.archive.ubuntu.com/ubuntu jammy-backports InRelease [99,8 kB]
Get:5 http://security.ubuntu.com/ubuntu jammy-security/main amd64 DEP-11 Metadata [11,4 kB]
Ign:6 http://packages.ros.org/ros/ubuntu jammy InRelease
Hit:7 http://packages.ros.org/ros2/ubuntu jammy InRelease
Err:8 http://packages.ros.org/ros/ubuntu jammy Release
404 Not Found [IP: 64.50.236.52 80]
Reading package lists... Done
E: The repository 'http://packages.ros.org/ros/ubuntu jammy Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.