A 404 error occurred in the process of sudo apt-get update. How to solve it? fiber@ubuntu:/etc/apt$ sudo apt-get update Have you ever met？
Hit:1 http://archive.ubuntukylin.com:10006/ubuntukylin xenial InRelease Hit:2 http://download.virtualbox.org/virtualbox/debian xenial InRelease Hit:3 http://cn.archive.ubuntu.com/ubuntu xenial InRelease Get:4 http://security.ubuntu.com/ubuntu xenial-security InRelease [107 kB] Hit:5 http://cn.archive.ubuntu.com/ubuntu xenial-updates InRelease Hit:6 http://cn.archive.ubuntu.com/ubuntu xenial-backports InRelease Ign:7 https://nexus.fd.io/content/repositories/fd.io.ubuntu.xenial.main ./ InRelease Ign:8 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ InRelease Ign:10 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Release Ign:11 https://nexus.fd.io/content/repositories/fd.io.ubuntu.xenial.main ./ Release.gpg Ign:12 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Packages Ign:13 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en_US Ign:14 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en Ign:12 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Packages Ign:13 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en_US Ign:14 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en Ign:12 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Packages Ign:13 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en_US Ign:14 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en Ign:12 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Packages Ign:13 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en_US Ign:14 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en Ign:12 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Packages Ign:13 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en_US Ign:14 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en Err:12 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Packages 404 Not Found Ign:13 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en_US Ign:14 https://nexus.fd.io/content/repositories/fd.io.ubuntu..main ./ Translation-en Fetched 107 kB in 10s (9,909 B/s) Reading package lists... Done W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Packages (contrib/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target DEP-11 (contrib/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target DEP-11-icons (contrib/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Packages (contrib/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target DEP-11 (contrib/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target DEP-11-icons (contrib/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target Packages (contrib/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target DEP-11 (contrib/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target DEP-11-icons (contrib/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 E: Failed to fetch https://nexus.fd.io/content/repositories/fd.io.ubuntu..main/./Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Packages (contrib/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target DEP-11 (contrib/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target DEP-11-icons (contrib/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:53 W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Packages (contrib/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target DEP-11 (contrib/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target DEP-11-icons (contrib/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:54 W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target Packages (contrib/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target DEP-11 (contrib/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 W: Target DEP-11-icons (contrib/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:52 and /etc/apt/sources.list:55 nwnj...@fiberhome.com
