GPG error: NO_PUBKEY 5C808C2B65558117

By xngo on February 21, 2019

Error message

W: GPG error: http://www.deb-multimedia.org sid InRelease: 
The following signatures couldn't be verified because 
the public key is not available: NO_PUBKEY 5C808C2B65558117

Solution

Add the following line in /etc/apt/sources.list.

deb http://www.deb-multimedia.org buster main non-free

And, then run the following commands.

sudo apt-get update
sudo apt-get -f install
sudo apt-get install deb-multimedia-keyring
sudo apt-get update

Reference

Deb-multimedia

About the author

Xuan Ngo is the founder of OpenWritings.net. He currently lives in Montreal, Canada. He loves to write about programming and open source subjects.