Issue with signature for bionic repository - graph-tool

8 Jan 2021

      Dear Tiago,
trying to install graph-tool on a ubuntu machine, I got the following error:
W: GPG error: https://downloads.skewed.de/apt bionic InRelease: The
    following signatures were invalid: EXPKEYSIG 7A80C8ED4FCCBE09 Tiago
    de Paula Peixoto tiago@skewed.de
    E: The repository 'https://downloads.skewed.de/apt bionic InRelease'
    is not signed.
I suppose this relates to the PGP key at the end of 
https://downloads.skewed.de/apt/dists/bionic/InRelease 
https://downloads.skewed.de/apt/dists/bionic/InRelease.
Could you let me know if the key is indeed expired or if it is an issue 
on my side?
Otherwise the initial addition of the repository seems to work since I get:
deb https://downloads.skewed.de/apt bionic mainWarning: Permanently
    added '[localhost]:22291' (ECDSA) to the list of known hosts.
    deb-src https://downloads.skewed.de/apt bionic mainWarning:
    Permanently added '[localhost]:22291' (ECDSA) to the list of known
    hosts.
Thanks in advance for your help.
Best.
-- 
Tanguy Fardet
Postdoctoral researcher, University of Tübingen, Max Planck Institute 
for Biological Cybernetics.

Website: http://www.msc.univ-paris-diderot.fr/~fardet 
http://www.msc.univ-paris-diderot.fr/~fardet

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