Plex GPG error: The following signatures couldn’t be verified because the public key is not available

Plex Debian Repo GPG Error

Recently while I was attempting to run a standard  apt-get update on a personal server, I received an error regarding the Plex repository, something about signature couldn’t be verified because the public key is not available.

Thankfully though, I have seen this type of error before, and it’s very easy to fix … 

This was the specific error that I got:


So what I did was to browse that repository and look to see if another key was available.  So if you went to this URL ( ) you would see that a new key was added on April 28, 2016 … which was the exact date I had this issue!  Ah ha!

Now that we have found the new key, all we need to do is download it, and add it using  apt-key .  Let’s take this step by step to make it easy…

Download New Key

Install New Key

Clean APT and Run Update



Orlando, FL

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