404 Not Found [IP: 2605:bc80:3010::134 80]

Hi!
I’m following the steps for install ROS Foxy, but it doesn’t work, any tips for make it done, how can I solve it? please, I got this error message:
Err:2 http://packages.ros.org/ros2/ubuntu hirsute Release
404 Not Found [IP: 2605:bc80:3010::134 80]
in the command line I wrote:
sudo apt update && sudo apt upgrade

I got:

Ign:1 http://packages.ros.org/ros2/ubuntu hirsute InRelease
Hit:2 http://ports.ubuntu.com/ubuntu-ports hirsute InRelease
Err:3 http://packages.ros.org/ros2/ubuntu hirsute Release
** 404 Not Found [IP: 2605:bc80:3010::134 80]**
Get:4 http://ports.ubuntu.com/ubuntu-ports hirsute-updates InRelease [109 kB]

@MNJManny
The system requirements for ROS2 Foxy is Ubuntu 20.04.
https://docs.ros.org/en/foxy/Installation/Ubuntu-Development-Setup.html#system-requirements
I’d recommend you to install Ubuntu 20.04 instead of 21.04.