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FIX MONGODB GPG ERROR ON UBUNTU

From time to time you will need to update your Mongo pgp key so you can run normal updates. Below is the procedure

When running
sudo apt-get update

You will receive an error such as this when the pgp keys for Mongo are out of date
W: GPG error: . and so on
E: The repository ‘https://repo.mongodb.org/apt/……..’ is not signed

To fix this run the following:
wget -qO – https://www.mongodb.org/static/pgp/server-5.0.asc | sudo apt-key add –

You will want to change the 5.0 above to the version listed in the error like this:
wget -qO – https://www.mongodb.org/static/pgp/server-4.2.asc | sudo apt-key add –

Press Enter
Mongo will get the new keys

Now you can run
sudo apt-get update
and you will not receive the errors