Updating 907 keys
Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. I found several posts telling me to run several gpg commands, but they didn't solve the problem because of two things.
W: GPG error: Release: The following signatures couldn't be verified because teh public key is not available: NO_PUBKEY 07DC563D1F41B907 W: You may want to run apt-get update to correct these problems Questions on Stack Overflow are expected to relate to programming within the scope defined by the community.Prime free trial and invitee customers: We will automatically apply an Gift Card to your Gift Card Balance in the amount equal to the Prime exclusive discount after you become a paid Prime member.If you cancel your paid Prime membership or return the qualifying smartphone within the first 3 months of your paid Prime membership, we may void your Gift Card or charge you in the amount of the Gift Card. Fulfillment by Amazon (FBA) is a service we offer sellers that lets them store their products in Amazon's fulfillment centers, and we directly pack, ship, and provide customer service for these products.Headsets are available for those people who are hard of hearing and individual loop systems for people who use hearing aids.Please reserve your unit when making your booking to ensure that the equipment is suitable for you.