0

OS version is 5.1.7 Hera. I got the following error when I try to update in app center:

- W: GPG error: http://repo.vivaldi.com/stable/deb stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 793FEB8BB69735B2
- E: The repository 'http://repo.vivaldi.com/stable/deb stable 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.

Since the problem seem to be vivaldi, I tried to remove it (I don't use it anyway) using sudo apt purge vivaldi, sudo apt-get purge-vivaldi-stable, and dpkg -l | grep vivaldi. After that I tried to update again, but the error persist.

I also tried to try to import all missing GPG keys using y-ppa-manager, but the error still persist.

I don't understand how to fix it, so any help will be appreciated. Sorry for the trouble and thank you.

Improve this question
1

1 Answer 1

Reset to default
2

Just remove the repo for your system:

sudo rm /etc/apt/sources.list.d/vivaldi.list

I hope this help you

Edit:

Could you please try: cd ~ wget https://repo.vivaldi.com/stable/linux_signing_key.pub sudo apt-key add linux_signing_key.pub

Improve this answer
3
  • I tried that, and the terminal said: rm: cannot remove '/etc/apt/sources.list.d/vivaldi.list': No such file or directory And the 'failed to fecth updates' still persist.
    – fk20
    Commented Jan 11, 2021 at 9:07
  • 1
    I modified the answer, please try again. best regards.
    – Roberto Flores
    Commented Jan 12, 2021 at 2:34
  • Ok, I tried it and it works! Thank you so much!
    – fk20
    Commented Jan 12, 2021 at 10:39

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.