The following signatures were invalid: EXPKEYSIG 18DF3741CDFFDE29

[Liam Proven]

On Mon, 10 Jan 2022 at 08:45, robert rottermann <robert at redcor.ch> wrote:

> Googling for a solution made me execute the following steps:
>
>
> apt update
> apt-get clean
> mv /var/lib/apt/lists tmp
> apt-get clean
> apt-get update

None of this will help.

The repo signature is no longer valid.

Easiest solution:

[1] Uninstall the app
[2] Remove the repo
[3] Get the app in Snap or Flatpak format

This is what I did for some apps that gave me this grief, e.g. Spotify.

-- 
Liam Proven ~ Profile: https://about.me/liamproven
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