Error There is no public key available for the following key IDs disebabkan oleh terhapusnya atau belum di import gpg dari key tersebut. Berikut ini log errornya Hit http://apt.newrelic.com newrelic Release.gpg Ign http://apt.newrelic.com/debian/ newrelic/non-free Translation-en Hit http://ftp.us.debian.org squeeze-updates/main amd64 Packages/DiffIndex Ign http://apt.newrelic.com/debian/ newrelic/non-free Translation-en_US Hit http://ftp.us.debian.org squeeze-updates/main amd64 Packages Hit http://apt.newrelic.com newrelic Release Hit http://apt.newrelic.com […]