Yes, I found this problem, but how should I modify it? Is the etc/apt/source.list file modified? How should I modify it?
My source file content： #deb cdrom:[Ubuntu 16.04.4 LTS _Xenial Xerus_ - Release amd64 (20180228)]/ xenial main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://cn.archive.ubuntu.com/ubuntu/ xenial main restricted # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://cn.archive.ubuntu.com/ubuntu/ xenial-updates main restricted # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://cn.archive.ubuntu.com/ubuntu/ xenial universe # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial universe deb http://cn.archive.ubuntu.com/ubuntu/ xenial-updates universe # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://cn.archive.ubuntu.com/ubuntu/ xenial multiverse # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial multiverse deb http://cn.archive.ubuntu.com/ubuntu/ xenial-updates multiverse # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://cn.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse # deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu xenial partner # deb-src http://archive.canonical.com/ubuntu xenial partner deb http://security.ubuntu.com/ubuntu xenial-security main restricted # deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted deb http://security.ubuntu.com/ubuntu xenial-security universe # deb-src http://security.ubuntu.com/ubuntu xenial-security universe deb http://security.ubuntu.com/ubuntu xenial-security multiverse # deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse deb http://download.virtualbox.org/virtualbox/debian xenial contrib deb http://download.virtualbox.org/virtualbox/debian xenial contrib deb http://download.virtualbox.org/virtualbox/debian xenial contrib deb http://download.virtualbox.org/virtualbox/debian xenial contrib nwnj...@fiberhome.com From: Chris Luke Date: 2018-05-02 19:06 To: 汤超; vpp-dev CC: csit-dev Subject: Re: [csit-dev] [vpp-dev] A 404 error occurred in the process of sudo apt-get update. How to solve it? ‘fd.io.ubuntu..main’ is not a valid URL – spot the double-dot. It’s missing the word ‘xenial’. Chris. From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of ?? Sent: Tuesday, May 1, 2018 22:41 To: vpp-dev <vpp-dev@lists.fd.io> Cc: csit-dev <csit-...@lists.fd.io> Subject: [EXTERNAL] [vpp-dev] A 404 error occurred in the process of sudo apt-get update. How to solve it? 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
