我正在运行 Ubuntu 14.04 LTS (Trusty)，并尝试按照以下步骤使用 Yarn 安装 Cloudera Hadoop这教程。
在选项下，我选择To add the CDH 5 repository:并自定义了操作系统的 URL trusty。然后我安装了 Zookeeper，但在安装 Zookeeper-Server 时出现以下错误：
$ sudo apt-get install zookeeper-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
zookeeper-server : Depends: zookeeper (= 3.4.5+cdh5.3.2+83-1.cdh5.3.2.p0.17~trusty-cdh5.3.2) but 3.4.5+dfsg-1 is to be installed
E: Unable to correct problems, you have held broken packages.
文件：/etc/apt/sources.list
$ cat /etc/apt/sources.list
# deb cdrom:[Ubuntu 14.04 LTS _Trusty Tahr_ - Release amd64 (20140417)]/ trusty main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://download.nus.edu.sg/mirror/ubuntu/ trusty main restricted
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://download.nus.edu.sg/mirror/ubuntu/ trusty-updates main restricted
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty-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://download.nus.edu.sg/mirror/ubuntu/ trusty universe
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty universe
deb http://download.nus.edu.sg/mirror/ubuntu/ trusty-updates universe
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty-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://download.nus.edu.sg/mirror/ubuntu/ trusty multiverse
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty multiverse
deb http://download.nus.edu.sg/mirror/ubuntu/ trusty-updates multiverse
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty-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://download.nus.edu.sg/mirror/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty-backports main restricted universe multiverse
deb http://download.nus.edu.sg/mirror/ubuntu/ trusty-security main restricted
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty-security main restricted
deb http://download.nus.edu.sg/mirror/ubuntu/ trusty-security universe
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty-security universe
deb http://download.nus.edu.sg/mirror/ubuntu/ trusty-security multiverse
deb-src http://download.nus.edu.sg/mirror/ubuntu/ trusty-security 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 trusty partner
# deb-src http://archive.canonical.com/ubuntu trusty partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu trusty main
deb-src http://extras.ubuntu.com/ubuntu trusty main
并且：
$ cat /etc/apt/sources.list.d/*
deb [arch=amd64] http://archive.cloudera.com/cdh5/ubuntu/trusty/amd64/cdh trusty-cdh5 contrib
deb-src http://archive.cloudera.com/cdh5/ubuntu/trusty/amd64/cdh trusty-cdh5 contrib
deb http://toolbelt.heroku.com/ubuntu ./
deb http://toolbelt.heroku.com/ubuntu ./
deb http://ppa.launchpad.net/webupd8team/sublime-text-3/ubuntu trusty main
# deb-src http://ppa.launchpad.net/webupd8team/sublime-text-3/ubuntu trusty main
deb http://ppa.launchpad.net/webupd8team/sublime-text-3/ubuntu trusty main
# deb-src http://ppa.launchpad.net/webupd8team/sublime-text-3/ubuntu trusty main
如何解决此损坏的包裹问题并成功安装 zookeeper？
答案1
读到这篇文章博客，我意识到这不是包装损坏的问题。要解决此包装损坏错误：
卸载以前的 Zookeeper：
$ sudo apt-get 删除 zookeeper
$ sudo apt-get purge zookeeper
全新安装 Zookeeper
$ sudo apt-get 安装 zookeeper
安装 Zookeeper 服务器
$ sudo apt-get 安装 zookeeper 服务器