When trying to following instruction ,I am getting "signatures were invalid "error

[WilliamVJacob]

Hi,
I am trying to install zamia speech but when do the third step it shows "signature were invalid error" . I have shared the logs below
sudo -i apt-get update
Get:1 http://goofy.zamia.org/repo-ai/raspbian/stretch/armhf ./ InRelease [1,353 B]
Err:1 http://goofy.zamia.org/repo-ai/raspbian/stretch/armhf ./ InRelease
The following signatures were invalid: EXPKEYSIG 5E5823F5B4F0DEA9 Guenter Bartsch [email protected]
Hit:2 http://raspbian.raspberrypi.org/raspbian buster InRelease
Hit:3 http://archive.raspberrypi.org/debian buster InRelease
Reading package lists... Done
W: GPG error: http://goofy.zamia.org/repo-ai/raspbian/stretch/armhf ./ InRelease: The following signatures were invalid: EXPKEYSIG 5E5823F5B4F0DEA9 Guenter Bartsch [email protected]
E: The repository 'http://goofy.zamia.org/repo-ai/raspbian/stretch/armhf ./ InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

[gooofy]

Don't think it is a good idea to install stretch packages on buster, but if you want to try that anyway: have you imported the repo's key via apt-key ?

[WilliamVJacob]

Yes I added key via apt-key
But I still faced the issue

[edbir1]

Anything on this issue? I am receiving the same error. I tried Stretch, Buster and an ubuntu18 vm. and received the same error.
W: GPG error: http://goofy.zamia.org/repo-ai/raspbian/stretch/armhf ./ InRelease: The following signatures were invalid: EXPKEYSIG 5E5823F5B4F0DEA9 Guenter Bartsch <[email protected]> W: The repository 'http://goofy.zamia.org/repo-ai/raspbian/stretch/armhf ./ InRelease' is not signed. N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.

[edbir1]

The problem is that your signing key expired on 16 Dec 2019. It was only valid for 2 years.

pub rsa2048 2017-12-16 [SC] [expired: 2019-12-16]
6531 47DE 36A3 659B A814 BDC3 5E58 23F5 B4F0 DEA9
uid [ expired] Guenter Bartsch [email protected]

[ppvastar]

Same issue here. Any way to solve it?

[consde]

Any help is highly appreciated. Same problem here.

[ppvastar]

@consde I found out the solution

Instead of running the following commands following the manual which causes failure,

apt-get update
apt-get install kaldi-chain-zamia-speech-de kaldi-chain-zamia-speech-en python-kaldiasr python-nltools pulseaudio-utils pulseaudio

One can manually download and install the above mentioned deb packages here, except pulseaudio-utils and pulseaudio which can be installed from official raspbian sources.

https://goofy.zamia.org/repo-ai/

Especailly, for raspberry pi 4 armhf, all the packages are available here :
https://goofy.zamia.org/repo-ai/raspbian/stretch/armhf/

[edbir1]

Can someone who knows Gunter contact him to update the signing key? I don't think anyone can really update or install the packages until he does.

[franck-exceenis]

If you want to download all the debian packages from this repository, you can do:

curl 'https://goofy.zamia.org/repo-ai/raspbian/stretch/armhf/' | grep -E 'href="[^"]*\.deb"' | sed 's#^.*href="\([^"]*\.deb\)".*$#\1#' | while read LINE; do wget "https://goofy.zamia.org/repo-ai/raspbian/stretch/armhf/$LINE"; done

and then install manually the package you want using sudo dpkg -i <package>.