Getting NO_PUBKEY 7198F4B714ABFC68 error while installing jenkins NO_PUBKEY

[kmooventhan98]

sudo apt-get update
sudo apt-get install jenkins
Ign:1 https://pkg.jenkins.io/debian binary/ InRelease
Get:2 https://pkg.jenkins.io/debian binary/ Release [2,044 B]              
Get:3 https://pkg.jenkins.io/debian binary/ Release.gpg [833 B]                                       
Hit:4 http://us.archive.ubuntu.com/ubuntu noble InRelease                                               
Hit:5 http://us.archive.ubuntu.com/ubuntu noble-updates InRelease          
Ign:3 https://pkg.jenkins.io/debian binary/ Release.gpg
Hit:6 http://us.archive.ubuntu.com/ubuntu noble-backports InRelease
Hit:7 http://security.ubuntu.com/ubuntu noble-security InRelease
Reading package lists... Done
W: GPG error: https://pkg.jenkins.io/debian binary/ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7198F4B714ABFC68
E: The repository 'https://pkg.jenkins.io/debian binary/ Release' 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.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package jenkins

[gh-sagar]

even i am getting the same error

[kmooventhan98]

Fix: https://www.jenkins.io/blog/2025/12/23/repository-signing-keys-changing/

[gh-sagar]

thank you so much it worked :)