Fix Unverified Package - APT Errors
This is for those who experience the following error while installing anything from apt-get or Synaptic package manager from the official repositories even though you have the valid GPG keys installed (For Ubuntu/Debian ONLY):
WARNING: The following packages cannot be authenticated!
(And further are required to use –fix-missing parameter to solve the error.)
To fix it, do this:
sudo apt-get install debian-archive-keyring debian-keyring
Next, run the Update by giving:
sudo apt-get update
That’s it, you shouldn’t be experiencing anymore issues with verification on the Official repositories. If its of the rest, you need to acquire a GPG key manually.
Alternate way - SecureApt
