Unable to install jenkins server gpg key error

Hello.
During installing jenkins server task, I get always the error of gpg key. Any help please ?

Downloading Packages:
[SKIPPED] jenkins-2.401.3-1.1.noarch.rpm: Already downloaded
Public key for jenkins-2.401.3-1.1.noarch.rpm is not installed
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing ‘yum clean packages’.
Error: GPG check FAILED

Hi , Thanks for the feedback , Conveyed to the team.

I solved the problem by following the official guide for installing jenkins on linux servers here