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W: An error occurred during the signature verification
Posted by: Wei Jiang
Date: March 06, 2022 03:31PM


I try to call "sudo apt-get update" on ubuntu 18, and got errors:
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: bionic InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 467B942D3A79BD29

What can I do please?
Any information would be appreciated. Thanks in advance.

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