apt-get update Kali Linux

Question

I'm having problems updating my Kali Linux VM. When I run

apt-get update 

I get this error. How do I solve this?

Answer 1

your keyring keys are expired, you need to add them manualy or update the new keys.

to add a new key

apt-key adv --keyserver hkp://keys.gnupg.net --recv-keys 7D8D0BF6

to install the newest keys

apt-get install kali-archive-keyring