Somehow the local cache of repository information on your system is outdated, and apt update isn’t updating it. To fix that, delete the local cache:

rm /var/lib/apt/lists/*.debian.org_* 

and then run

apt update 

again (both as root).

Somehow the local cache of repository information on your system is outdated, and apt update isn’t updating it. To fix that, delete the local cache:

rm /var/lib/apt/lists/*.debian.org_* 

and then run

apt update 

again (both as root).

This is tracked as Debian bug #1078608.

Somehow the local cache of repository information on your system is outdated, and apt update isn’t updating it. To fix that, delete the local cache:

rm /var/lib/apt/lists/*.debian.org.* 

and then run

apt update 

again (both as root).

(One possible reason for this could be that your system’s clock is set to a time in the future.)

Somehow the local cache of repository information on your system is outdated, and apt update isn’t updating it. To fix that, delete the local cache:

rm /var/lib/apt/lists/*.debian.org_* 

and then run

apt update 

again (both as root).