ı am using emacs 28.2 in manjaro linux and ı got error like this Error while verifying signature archive-contents.sig:
when ı install jedi with M-x shortcut
ı am looking at to this url How to proceed on package.el signature check failure but ı can not install gnu-elpa-keyring-update package because when ı write gnu-elpa-TAB
M-x gives [No match]