每次我尝试通过终端安装时，都会出现此信息：“我无法安装或更新，我在这里找不到可行的答案。这是我的 apt-get 更新结果：
点击 http://ppa.launchpad.net raring Release.gpg 点击 http://deb.opera.com stable Release.gpg 点击 http://ppa.launchpad.net raring Release.gpg 点击 http://deb.opera.com 稳定版本 点击 http://ppa.launchpad.net raring Release 点击 http://deb.opera.com stable/non-free i386 软件包 点击 http://ppa.launchpad.net raring Release 点击 http://ppa.launchpad.net raring/main i386 Packages 点击 http://ppa.launchpad.net raring/main i386 Packages Ign http://deb.opera.com 稳定/非免费 Translation-en_US Ign http://deb.opera.com stable/non-free 翻译-en Ign http://ppa.launchpad.net raring/main 翻译-en_US Ign http://ppa.launchpad.net raring/main 翻译-en Ign http://ppa.launchpad.net raring/main 翻译-en_US Ign http://ppa.launchpad.net raring/main 翻译-en 呃 http://archive.ubuntu.com raring Release.gpg 解析‘archive.ubuntu.com:http’时发生异常（-11 - 系统错误） 呃 http://extras.ubuntu.com raring Release.gpg 解析‘extras.ubuntu.com:http’时发生异常（-11 - 系统错误） 错误 http://dl.google.com 稳定版本.gpg 解析‘dl.google.com:http’时发生异常（-11 - 系统错误） Ign https://private-ppa.launchpad.net 量子Release.gpg 错误 http://archive.ubuntu.com raring-updates Release.gpg 解析‘archive.ubuntu.com:http’时发生异常（-11 - 系统错误） 获取：1 http://archive.ubuntu.com raring-security Release.gpg [933 B] 获取：2 http://archive.ubuntu.com raring-proposed Release.gpg [933 B] 获取：3 http://archive.ubuntu.com raring-backports Release.gpg [933 B] 点击 http://archive.ubuntu.com raring Release 获取：4 http://archive.ubuntu.com raring-updates 发布 [40.8 kB] 获取：5 http://archive.ubuntu.com raring-security 发布 [40.8 kB] Ign http://extras.ubuntu.com raring 发布 Ign http://dl.google.com 稳定版本 Ign https://private-ppa.launchpad.net 量子发布 获取：6 http://archive.ubuntu.com raring-proposed Release [40.8 kB] 点击 http://archive.ubuntu.com raring-backports Release Ign http://archive.ubuntu.com raring/main 来源/DiffIndex Ign http://archive.ubuntu.com raring/restricted Sources/DiffIndex Ign http://archive.ubuntu.com raring/universe 来源/DiffIndex Ign http://archive.ubuntu.com raring/multiverse 来源/DiffIndex Ign http://archive.ubuntu.com raring/main i386 软件包/DiffIndex Ign http://archive.ubuntu.com raring/restricted i386 软件包/DiffIndex Ign http://archive.ubuntu.com raring/universe i386 软件包/DiffIndex Ign http://archive.ubuntu.com raring/multiverse i386 软件包/DiffIndex 点击 http://archive.ubuntu.com raring/main 翻译-en 点击 http://archive.ubuntu.com raring/multiverse 翻译-en 点击 http://archive.ubuntu.com raring/restricted Translation-en Ign http://dl.google.com stable/main i386 软件包/DiffIndex 点击 http://archive.ubuntu.com raring/universe 翻译-en Ign http://archive.ubuntu.com raring-updates/main Sources/DiffIndex 忽略 http://archive.ubuntu.com raring-updates/restricted Sources/DiffIndex Ign http://archive.ubuntu.com raring-updates/universe 来源/DiffIndex Ign https://private-ppa.launchpad.net quantal/main i386 Packages/DiffIndex Ign http://archive.ubuntu.com raring-updates/multiverse 来源/DiffIndex Ign http://archive.ubuntu.com raring-updates/main i386 软件包/DiffIndex 点击 http://dl.google.com stable/main i386 Packages Ign http://archive.ubuntu.com raring-updates/restricted i386 软件包/DiffIndex Ign http://archive.ubuntu.com raring-updates/universe i386 软件包/DiffIndex Ign http://archive.ubuntu.com raring-updates/multiverse i386 软件包/DiffIndex 点击 http://archive.ubuntu.com raring-updates/main Translation-en 点击 http://archive.ubuntu.com raring-updates/multiverse Translation-en 点击 http://archive.ubuntu.com raring-updates/restricted Translation-en 点击 http://archive.ubuntu.com raring-updates/universe Translation-en 获取：7 http://archive.ubuntu.com raring-security/main 源 [24.7 kB] 获取：8 http://archive.ubuntu.com raring-security/restricted 源 [14 B] 获取：9 http://archive.ubuntu.com raring-security/universe 来源 [4,802 B] 获取:10 http://archive.ubuntu.com raring-security/multiverse 来源 [690 B] 点击 https://private-ppa.launchpad.net quantal/main i386 Packages Ign http://dl.google.com stable/main Translation-en_US 获取:11 http://archive.ubuntu.com raring-security/main i386 软件包 [67.9 kB] Ign http://dl.google.com stable/main 翻译-en 获取:12 http://archive.ubuntu.com raring-security/restricted i386 软件包 [14 B] 获取：13 http://archive.ubuntu.com raring-security/universe i386 软件包 [19.2 kB] 获取：14 http://archive.ubuntu.com raring-security/multiverse i386 软件包 [1,403 B] 点击 http://archive.ubuntu.com raring-security/main 翻译-en Ign http://extras.ubuntu.com raring/main Sources/DiffIndex 点击 http://archive.ubuntu.com raring-security/multiverse 翻译-en 点击 http://archive.ubuntu.com raring-security/restricted Translation-en 点击 http://archive.ubuntu.com raring-security/universe 翻译-en 获取:15 http://archive.ubuntu.com raring-proposed/universe i386 软件包 [18.0 kB] 获取:16 http://archive.ubuntu.com raring-proposed/main i386 软件包 [29.9 kB] 获取:17 http://archive.ubuntu.com raring-proposed/multiverse i386 软件包 [14 B] 获取:18 http://archive.ubuntu.com raring-proposed/restricted i386 软件包 [14 B] 点击 http://archive.ubuntu.com raring-proposed/main Translation-en 点击 http://archive.ubuntu.com raring-proposed/multiverse Translation-en 点击 http://archive.ubuntu.com raring-proposed/restricted Translation-en 点击 http://archive.ubuntu.com raring-proposed/universe Translation-en 点击 http://archive.ubuntu.com raring-backports/multiverse i386 软件包 点击 http://archive.ubuntu.com raring-backports/main i386 Packages 点击 http://archive.ubuntu.com raring-backports/restricted i386 软件包 点击 http://archive.ubuntu.com raring-backports/universe i386 软件包 点击 http://archive.ubuntu.com raring-backports/main Translation-en Ign https://private-ppa.launchpad.net quantal/main Translation-en_US 点击 http://archive.ubuntu.com raring-backports/multiverse Translation-en 点击 http://archive.ubuntu.com raring-backports/restricted Translation-en 点击 http://archive.ubuntu.com raring-backports/universe Translation-en 点击 http://archive.ubuntu.com raring/main 来源 Ign https://private-ppa.launchpad.net quantal/main 翻译-en 点击 http://archive.ubuntu.com raring/restricted 来源 点击 http://archive.ubuntu.com raring/universe 来源 点击 http://archive.ubuntu.com raring/multiverse 来源 点击 http://archive.ubuntu.com raring/main i386 Packages 点击 http://archive.ubuntu.com raring/restricted i386 软件包 点击 http://archive.ubuntu.com raring/universe i386 软件包 点击 http://archive.ubuntu.com raring/multiverse i386 软件包 获取:19 http://archive.ubuntu.com raring-updates/main 源 [37.0 kB] 获取:20 http://archive.ubuntu.com raring-updates/restricted 源 [14 B] 获取:21 http://archive.ubuntu.com raring-updates/universe 源 [49.8 kB] Ign http://extras.ubuntu.com raring/main i386 包/DiffIndex 获取:22 http://archive.ubuntu.com raring-updates/multiverse 来源 [690 B] 获取：23 http://archive.ubuntu.com raring-updates/main i386 软件包 [93.5 kB] 获取：24 http://archive.ubuntu.com raring-updates/restricted i386 软件包 [14 B] 获取：25 http://archive.ubuntu.com raring-updates/universe i386 软件包 [94.2 kB] 获取：26 http://archive.ubuntu.com raring-updates/multiverse i386 软件包 [1,403 B] Ign http://archive.ubuntu.com raring/main 翻译-en_US Ign http://archive.ubuntu.com raring/multiverse 翻译-en_US Ign http://archive.ubuntu.com raring/restricted Translation-en_US Ign http://archive.ubuntu.com raring/universe 翻译-en_US Ign http://archive.ubuntu.com raring-updates/main Translation-en_US Ign http://archive.ubuntu.com raring-updates/multiverse 翻译-en_US Ign http://archive.ubuntu.com raring-updates/restricted Translation-en_US Ign http://archive.ubuntu.com raring-updates/universe 翻译-en_US Ign http://archive.ubuntu.com raring-security/main Translation-en_US Ign http://archive.ubuntu.com raring-security/multiverse 翻译-en_US Ign http://archive.ubuntu.com raring-security/restricted Translation-en_US Ign http://archive.ubuntu.com raring-security/universe 翻译-en_US Ign http://archive.ubuntu.com raring-proposed/main Translation-en_US Ign http://archive.ubuntu.com raring-proposed/multiverse Translation-en_US Ign http://archive.ubuntu.com raring-proposed/restricted Translation-en_US Ign http://archive.ubuntu.com raring-proposed/universe 翻译-en_US Ign http://archive.ubuntu.com raring-backports/main Translation-en_US Ign http://archive.ubuntu.com raring-backports/multiverse 翻译-en_US Ign http://archive.ubuntu.com raring-backports/restricted Translation-en_US Ign http://archive.ubuntu.com raring-backports/universe 翻译-en_US 呃 http://extras.ubuntu.com raring/main Translation-en_US 解析‘extras.ubuntu.com:http’时发生异常（-11 - 系统错误） 呃 http://extras.ubuntu.com raring/main 翻译-en 解析‘extras.ubuntu.com:http’时发生异常（-11 - 系统错误） 呃 http://extras.ubuntu.com raring/main 来源 解析‘extras.ubuntu.com:http’时发生异常（-11 - 系统错误） 错误 http://extras.ubuntu.com raring/main i386 软件包 解析‘extras.ubuntu.com:http’时发生异常（-11 - 系统错误） 8 分 0 秒内获取 568 kB (1,181 B/s) W：无法获取 http://archive.ubuntu.com/ubuntu/dists/raring/Release.gpg 解析‘archive.ubuntu.com:http’时发生异常（-11 - 系统错误） W：无法获取 http://archive.ubuntu.com/ubuntu/dists/raring-updates/Release.gpg 解析‘archive.ubuntu.com:http’时发生了一些异常（-11 - 系统错误） W：无法获取 http://extras.ubuntu.com/ubuntu/dists/raring/Release.gpg 解析‘extras.ubuntu.com:http’时发生了一些异常（-11 - 系统错误） W：无法获取 http://dl.google.com/linux/chrome/deb/dists/stable/Release.gpg 解析‘dl.google.com:http’时发生异常（-11 - 系统错误） W：无法获取 http://extras.ubuntu.com/ubuntu/dists/raring/main/i18n/Translation-en_US 解析‘extras.ubuntu.com:http’时发生了一些异常（-11 - 系统错误） W：无法获取 http://extras.ubuntu.com/ubuntu/dists/raring/main/i18n/Translation-en 解析‘extras.ubuntu.com:http’时发生了一些异常（-11 - 系统错误） W：无法获取 http://extras.ubuntu.com/ubuntu/dists/raring/main/source/Sources 解析‘extras.ubuntu.com:http’时发生了一些异常（-11 - 系统错误） W：无法获取 http://extras.ubuntu.com/ubuntu/dists/raring/main/binary-i386/Packages 解析‘extras.ubuntu.com:http’时发生了一些异常（-11 - 系统错误） E：部分索引文件下载失败。它们已被忽略或使用旧文件代替。
答案1
答案2
您可能通过代理连接到互联网，因此您应该apt-get通过执行以下操作来设置代理：
在中创建一个文件夹
/etc/apt/apt.conf.d/$ sudo leafpad /etc/apt/apt.conf.d/95proxies在打开的文件中粘贴以下内容：
Acquire::http::proxy "http://yourProxyIP:8080/"; Acquire::ftp::proxy "ftp://yourProxyIP:8080/"; Acquire::https::proxy "https://yourProxyIP:8080/";
确保使用正确的代理 IP 更改 yourProxyIP。
Ctrl按“+”保存文件S 然后运行：
sudo apt-get update.
答案3
类型sudo apt-get update --fix-missing
答案4
如果您有代理，那么此链接有一些答案。
https://help.ubuntu.com/community/AptGet/Howto
看着那（这设置 apt-get 以使用 http 代理网页内的部分。