Why MySQL Repository Key suddenly expired? [duplicate]
Why is this happening? I've updated my machine last week.
W: GPG error: http://repo.mysql.com trusty InRelease: The following signatures were invalid: KEYEXPIRED 1487236823 KEYEXPIRED 1487236823 KEYEXPIRED 1487236823
Solution 1:
This solved my problem
sudo apt-key adv --keyserver pgp.mit.edu --recv-keys A4A9406876FCBD3C456770C88C718D3B5072E1F5
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