I am following the fastsetup instructions and when getting to the “NVIDIA DRIVERS → WSL-Only” step
I get the following error
sudo apt-get update
Get:1 file:/var/cuda-repo-wsl-ubuntu-11-7-local InRelease [1575 B]
Get:1 file:/var/cuda-repo-wsl-ubuntu-11-7-local InRelease [1575 B]
Hit:2 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease
Hit:3 https://cli.github.com/packages stable InRelease
Hit:4 http://security.ubuntu.com/ubuntu bionic-security InRelease
Hit:5 http://ppa.launchpad.net/apt-fast/stable/ubuntu bionic InRelease
Hit:6 http://archive.ubuntu.com/ubuntu bionic InRelease
Err:1 file:/var/cuda-repo-wsl-ubuntu-11-7-local InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY BCD50790B81839D3
Hit:7 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit:8 http://archive.ubuntu.com/ubuntu bionic-backports InRelease
Reading package lists... Done
W: GPG error: file:/var/cuda-repo-wsl-ubuntu-11-7-local InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY BCD50790B81839D3
E: The repository 'file:/var/cuda-repo-wsl-ubuntu-11-7-local 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.
I'm unsure how to proceed.