I have installed gazebo on my ubuntu 22.04 LTS following the steps in https://classic.gazebosim.org/tutorials?tut=install_ubuntu via their alternative installation. I am getting the following error when I try to update the packages using sudo apt update
W: http://packages.osrfoundation.org/gazebo/ubuntu-stable/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
I have tried deleting the key from apt-key list but it gave me additional warning about unable to very the key, since the public key was missing. Is there a way for fixing this warning?
I have referred the a similar solution at Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead but couldn't solve the problem.