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I get this error when I update the system:

W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 241FE6973B765FAE

is there something to work it out ?

Mohammad
  • 593

1 Answers1

7

Import the Public Key with the following command. Then update:

sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com 241FE6973B765FAE
  • I got the following error: gpg: requesting key 3B765FAE from hkp server keyserver.ubuntu.com gpgkeys: key 241FE6973B765FAE not found on keyserver gpg: no valid OpenPGP data found. gpg: Total number processed: 0 – sugab Mar 29 '15 at 09:17
  • Above answer is only applicable for @Mohammad –  Apr 05 '15 at 03:12
  • OK, so what the solution for my error >> W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 241FE6973B765FAE – sugab Apr 10 '15 at 08:54