Ошибка в репозитории с Ubuntu 16.04 (Xenial)

У меня проблема с запуском sudo apt-get update:

W:The repository 'http://old-releases.ubuntu.com/ubuntu xenial-security Release' does not have a Release file., W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use., W:See apt-secure(8) manpage for repository creation and user configuration details., W:The repository 'http://ppa.launchpad.net/ubuntu-audio-dev/ppa/ubuntu xenial Release' does not have a Release file., W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use., W:See apt-secure(8) manpage for repository creation and user configuration details., W:Failed to fetch http://de.old-releases.ubuntu.com/ubuntu/dists/xenial/InRelease Could not resolve 'de.old-releases.ubuntu.com', W:Failed to fetch http://de.old-releases.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Could not resolve 'de.old-releases.ubuntu.com', W:Failed to fetch http://de.old-releases.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Could not resolve 'de.old-releases.ubuntu.com', E:Failed to fetch http://old-releases.ubuntu.com/ubuntu/dists/xenial-security/main/binary-amd64/Packages 404 Not Found, E:Failed to fetch http://ppa.launchpad.net/ubuntu-audio-dev/ppa/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not Found, W:Some index files failed to download. They have been ignored, or old ones used instead.

следует ли добавить какой-либо другой репозиторий?

0
задан 5 July 2017 в 12:46

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