Hi guys, forgive a noob trying to install brave on a linux ubuntu 20.04
recently, i did a dual boot for linux on my gateway ne57007b, then i`m trying to install Ros noetic, but first i have tried to install brave. It happens that when use sudo apt update this is what i get:
can someone help me ?
Err:3 https://brave-browser-apt-release.s3.brave.com focal InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 4FE13824E3FFC656
W: GPG error: https://brave-browser-apt-release.s3.brave.com focal InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 4FE13824E3FFC656
E: The repository ‘https://brave-browser-apt-release.s3.brave.com focal InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.