"The repository '.../ros2/ubuntu impish Release' does not have a Release file" (Foxy)
Installing ROS 2 via Debian Packages from https:/docs.ros.org/en/foxy/Installation/Ubuntu-Install-Debians.html after following the instructions everything worked well until i used 'sudo apt update' following error occured:
E: The repository 'http://packages.ros.org/ros2/ubuntu impish 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.
I'm using pop_os 21.10 graphics card model is Mesa Intel® HD Graphics 5500 (BDW GT2) gcc version- (Ubuntu 11.2.0-7ubuntu2) 11.2.0