If you're encountering the "NO_PUBKEY" error while working with a Raspberry Pi, you can still follow a similar process to resolve the issue. Here's how you can import the missing GPG keys on your Raspberry Pi:
1. Open a terminal on your Raspberry Pi.
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 0E98404D386FA1D9
2. Use the following commands to import the missing GPG keys:
For the first key (0E98404D386FA1D9):
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 0E98404D386FA1D9
For the second key (6ED0E7B82643E131):
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 6ED0E7B82643E131
3. Once you've imported the keys, you can try running your package manager command again to install or update packages on your Raspberry Pi.