How to Fix Apt-Get GPG error NO_PUBKEY Ubuntu 14

Fix Apt-Get GPG error NO_PUBKEY Ubuntu

In this tutorial, we will show you how to fix apt-get GPG error NO_PUBKEY on Ubuntu 14.04 LTS.  This morning when I do apt-get update on my new Ubuntu 14.04 server, I got these error messages:

Fix Apt-Get GPG error NO_PUBKEY Ubuntu

After did some small research on Google, I found a way to overcome this GPG NO_PUBKEY error by downloading the missing key using apt-key tools. The command is as follow:

Command result:

Second command:


Notice that code 40976EAF437D05B5 and 3B4FE6ACC0B21F32 was taken from the error messages above. Now you can do apt-get update again and you should have no error anymore.

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