W: GPG Error: http://repo.mysql.com/apt/debian jessie InRelease: The following signatures were invalid: EXPKEYSIG 8C718D3B5072E1F5 MySQL Release Engineering [email protected]
E: The repository “http://repo.mysql.com/apt/debian jessie InRelease” is not signed.
N: It cannot be updated from a repository like this safely and is therefore disabled by default.
N: See the apt-secure(8) man page for details on creating repositories and configuring users.
I tried to update the keys and the same error came out
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