Ubuntu12.10 GPG error

Implementation of sudo apt-get update:

E: GPG error: http://extras.ubuntu.com quantal Release: the following signature is invalid: NODATA 1 NODATA 2

Check a lot of that is the source of the problem, for many, finally, what is the problem?

Started by Miles at December 27, 2016 - 8:57 AM

gpg –keyserver keyserver.ubuntu.com –recv 3E5C1192
gpg –export –armor 3E5C1192 | sudo apt-key add -
sudo apt-get update

Posted by Hunter at January 02, 2017 - 9:54 AM

Xie answered, I tried to, or the same error, the main tip is NODATA 1 NODATA 2 KEY, not NOPUBLIC

Posted by Miles at January 05, 2017 - 9:04 AM