https://bioinformaticsonline.com/answers/view/33533/how-to-resolve-this-public-key-issue-in-ubuntu? https://bioinformaticsonline.com/answers/view/33533/how-to-resolve-this-public-key-issue-in-ubuntu Fri, 16 Jun 2017 05:01:47 -0500 https://bioinformaticsonline.com/answers/view/33533/how-to-resolve-this-public-key-issue-in-ubuntu Hit:12 http://download.opensuse.org/repositories/isv:/ownCloud:/desktop/Ubuntu_16.10 Packages
Fetched 1.496 B in 0s (3.442 B/s)
Reading package lists... Done
W: GPG error: http://download.opensuse.org/repositories/isv:/ownCloud:/desktop/Ubuntu_16.10 Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4ABE1AC7557BEFF9
W: The repository 'http://download.opensuse.org/repositories/isv:/ownCloud:/desktop/Ubuntu_16.10 Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.

]]> Neel