Expired EDX key while running apt-get update

[Bastiaan Franssen]

Hi everybody,

Hope you've had great holidays! Since this week, I'm getting an error when I'm typing in the following command in terminal on ubuntu 12.04 

sudo apt-get update -y

This is the error message I receive in the terminal:

W: GPG error: http://ppa.edx.org precise Release: The following signatures were invalid: KEYEXPIRED 1481833680 KEYEXPIRED 1481833680 KEYEXPIRED 1481833680

Does anyone have an idea how to fix this?

[Cyrus Chan]

You can search for the latest signature at

http://keyserver.ubuntu.com/pks/lookup?op=vindex&search=0x69464050&fingerprint=on

For example, copy this signature to a file beginning from 

-----BEGIN PGP PUBLIC KEY BLOCK-----

to 

-----END PGP PUBLIC KEY BLOCK-----and then run

apt-key add <filename>

[Afzal Wali Naushahi]

The key can be updated by 

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <key_here>

so in this case, it is: 
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 69464050

output:

Executing: /tmp/tmp.npHxd5p5mh/gpg.1.sh --keyserver

keyserver.ubuntu.com

--recv-keys

69464050

gpg: requesting key 69464050 from hkp server keyserver.ubuntu.com

gpg: key 69464050: "edX Inc. (edX PPA) <admi...@edx.org>" 2 new signatures

gpg: Total number processed: 1

gpg:         new signatures: 2