Comment 35 for bug 1644498

Hi,
i'm still getting the error after running apt-get update :

Réception de:100 http://fr.archive.ubuntu.com/ubuntu xenial-proposed/restricted amd64 DEP-11 Metadata [201 B]
55,4 Mo réceptionnés en 8s (6 210 ko/s)
AppStream cache update completed, but some metadata was ignored due to errors.
Lecture des listes de paquets... Fait
W: Erreur de GPG : http://fr.archive.ubuntu.com/ubuntu xenial InRelease : Au moins une signature non valable a été rencontrée.
W: The repository 'http://fr.archive.ubuntu.com/ubuntu xenial InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: Erreur de GPG : http://fr.archive.ubuntu.com/ubuntu xenial-updates InRelease : Au moins une signature non valable a été rencontrée.
W: The repository 'http://fr.archive.ubuntu.com/ubuntu xenial-updates InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: Erreur de GPG : http://security.ubuntu.com/ubuntu xenial-security InRelease : Au moins une signature non valable a été rencontrée.
W: The repository 'http://security.ubuntu.com/ubuntu xenial-security InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: Erreur de GPG : http://fr.archive.ubuntu.com/ubuntu xenial-proposed InRelease : Au moins une signature non valable a été rencontrée.
W: The repository 'http://fr.archive.ubuntu.com/ubuntu xenial-proposed InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.

i have install the fix version. The command apt-cache policy appstream give :

appstream:
  Installé : 0.9.4-1ubuntu2
  Candidat : 0.9.4-1ubuntu2
 Table de version :
 *** 0.9.4-1ubuntu2 400
        400 http://fr.archive.ubuntu.com/ubuntu xenial-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     0.9.4-1ubuntu1 500
        500 http://fr.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
     0.9.4-1 500
        500 http://fr.archive.ubuntu.com/ubuntu xenial/main amd64 Packages

May i miss something?

luc