Error saying "The following signatures couldn't be verified because the public key is not available: NO_PUBKEY"

+1 vote

I have R version 2.13 and would like to update it to the newer version. I ran this command and ended uo with an error

sudo apt-get update

Error:

Reading package lists... Done

W: GPG error: http://lib.stat.cmu.edu oneiric/ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 51716619E084DAB9

Nov 12, 2018 in Data Analytics by Ali
• 10,430 points
104 views

1 answer to this question.

+1 vote

Try this:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E084DAB9 
answered Nov 12, 2018 by Maverick
• 10,040 points
worked well! thanks a lot

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