i2p installation on whonix workstation

Whenever I attempt to install i2p on whonix workstation using the guide on this site i have a problem with i2p not installing.

at this step:
‘3. I2P installation. A.’
i run this command: ‘sudo apt update && sudo apt full-upgrade’

i get this output:
W: GPG error: http :// ppa.launchpad . net/i2p-maintainers/i2p/ubuntu lunar InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY AB9660B9EB2CC88B
E: The repository ‘http :// ppa.launchpad . net/i2p-maintainers/i2p/ubuntu lunar InRelease’ is not signed.
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.

How can I fix this and get i2p installed on my whonix workstation?

Thank you.

This issue isn’t caused by Whonix. It cannot be fixed by Whonix. Please contact the respective maintainer for that repository.

As an additional comment…

I am not sure that would work on any Debian based Linux distribution (which includes Whonix). Unless explicitly stated by the maintainers of that repository, it’s likely that won’t work.

For instructions how to use I2P on Whonix that are tested, see:

thanks for the replies everyone.

i have managed to successfully install i2p on ubuntu, i think using the same repo source. so thought the problem could be with whonix.

i’ll be trying to get help from the i2p team to see what they say bout this.

Why not use