无法使用 apt 来更新、升级或安装任何软件。我尝试了不同的 WiFi 连接，但问题仍然存在。对于更新，输出如下：
Err:1 http://es.archive.ubuntu.com/ubuntu bionic InRelease
409 Conflict [IP: 104.19.138.75 80]
Hit:2 http://ppa.launchpad.net/atareao/telegram/ubuntu bionic InRelease
Hit:3 http://download.virtualbox.org/virtualbox/debian bionic InRelease
Hit:4 http://security.ubuntu.com/ubuntu bionic-security InRelease
Err:5 http://es.archive.ubuntu.com/ubuntu bionic-updates InRelease
409 Conflict [IP: 104.19.138.75 80]
Hit:6 http://prerelease.keybase.io/deb stable InRelease
Hit:7 https://repo.skype.com/deb stable InRelease
Hit:8 http://ppa.launchpad.net/fossfreedom/rhythmbox-plugins/ubuntu bionic InRelease
Err:9 http://es.archive.ubuntu.com/ubuntu bionic-backports InRelease
409 Conflict [IP: 104.19.138.75 80]
Hit:10 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu bionic InRelease
Hit:11 http://ppa.launchpad.net/linuxuprising/apps/ubuntu bionic InRelease
Hit:12 http://ppa.launchpad.net/musicbrainz-developers/stable/ubuntu bionic InRelease
Hit:13 http://ppa.launchpad.net/phoerious/keepassxc/ubuntu bionic InRelease
Hit:14 http://ppa.launchpad.net/webupd8team/java/ubuntu bionic InRelease
Reading package lists... Done
N: See apt-secure(8) manpage for repository creation and user configuration details.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
E: The repository 'http://es.archive.ubuntu.com/ubuntu bionic InRelease' is no longer signed.
E: Failed to fetch http://es.archive.ubuntu.com/ubuntu/dists/bionic/InRelease 409 Conflict [IP: 104.19.138.75 80]
E: Failed to fetch http://es.archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease 409 Conflict [IP: 104.19.138.75 80]
E: The repository 'http://es.archive.ubuntu.com/ubuntu bionic-updates InRelease' is no longer 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.
N: Skipping acquire of configured file 'contrib/binary-i386/Packages' as repository 'http://download.virtualbox.org/virtualbox/debian bionic InRelease' doesn't support architecture 'i386'
E: Failed to fetch http://es.archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease 409 Conflict [IP: 104.19.138.75 80]
E: The repository 'http://es.archive.ubuntu.com/ubuntu bionic-backports InRelease' is no longer 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.
对于升级，如下：
Err:1 http://es.archive.ubuntu.com/ubuntu bionic InRelease
409 Conflict [IP: 104.19.138.75 80]
Hit:2 http://ppa.launchpad.net/atareao/telegram/ubuntu bionic InRelease
Hit:3 http://download.virtualbox.org/virtualbox/debian bionic InRelease
Hit:4 http://security.ubuntu.com/ubuntu bionic-security InRelease
Err:5 http://es.archive.ubuntu.com/ubuntu bionic-updates InRelease
409 Conflict [IP: 104.19.138.75 80]
Hit:6 http://prerelease.keybase.io/deb stable InRelease
Hit:7 https://repo.skype.com/deb stable InRelease
Hit:8 http://ppa.launchpad.net/fossfreedom/rhythmbox-plugins/ubuntu bionic InRelease
Err:9 http://es.archive.ubuntu.com/ubuntu bionic-backports InRelease
409 Conflict [IP: 104.19.138.75 80]
Hit:10 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu bionic InRelease
Hit:11 http://ppa.launchpad.net/linuxuprising/apps/ubuntu bionic InRelease
Hit:12 http://ppa.launchpad.net/musicbrainz-developers/stable/ubuntu bionic InRelease
Hit:13 http://ppa.launchpad.net/phoerious/keepassxc/ubuntu bionic InRelease
Hit:14 http://ppa.launchpad.net/webupd8team/java/ubuntu bionic InRelease
Reading package lists... Done
N: See apt-secure(8) manpage for repository creation and user configuration details.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
E: The repository 'http://es.archive.ubuntu.com/ubuntu bionic InRelease' is no longer signed.
E: Failed to fetch http://es.archive.ubuntu.com/ubuntu/dists/bionic/InRelease 409 Conflict [IP: 104.19.138.75 80]
E: Failed to fetch http://es.archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease 409 Conflict [IP: 104.19.138.75 80]
E: The repository 'http://es.archive.ubuntu.com/ubuntu bionic-updates InRelease' is no longer 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.
N: Skipping acquire of configured file 'contrib/binary-i386/Packages' as repository 'http://download.virtualbox.org/virtualbox/debian bionic InRelease' doesn't support architecture 'i386'
E: Failed to fetch http://es.archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease 409 Conflict [IP: 104.19.138.75 80]
E: The repository 'http://es.archive.ubuntu.com/ubuntu bionic-backports InRelease' is no longer 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.
您知道如何修复此问题吗？
提前致谢！
答案1
同样的事情也发生在我身上，我已从西班牙更改为主要国家并且有效；）。问候。
当我听到我的声音时，我改变了西班牙的主要职能并发挥了作用；）。问候。