Public key of Google Chrome changed leading to NO_PUBKEY error

My terminal output


... Fetched 12.4 kB in 5s (2,191 B/s)
Reading package lists... Done
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6494C6D6997C215E

W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/Release 

W: Some index files failed to download. They have been ignored, or old ones used instead.





How to remove this warning

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -


Reference

Apt update error - “An error occurred during the signature verification” (Chrome) [duplicate]
https://askubuntu.com/questions/943146/apt-update-error-an-error-occurred-during-the-signature-verification-chrome