Pynqzu failed to install ros2 humble

PYNQ version: v3.0.1 Pynq_zu board
Ubuntu version:

Hello, I am trying to install ros2 humble on my pynq_zu board, (I’ve run apt-get update)
I followed the steps provided by ROS2 humble, here is the link:
when I run

$sudo add-apt-repository universe,

I got:

Then I went to the next step:

$sudo apt update

I got:

Finally I run

$sudo apt install ros-humble-desktop

But I got:
did anyone know how to solve the problem? I can only install Ros2 iron on pynq but some package do not support the iron, so I need to install humble.