我安装的是14.04的64位版本，结果为了安装pps，导致出现了这个问题，而且原装的软件中心也不见了。
之后开机，右上角就出现一个中心一个白色减号的红色小圆，因为无法截图，所以将提示信息录在下面：
发生了一个错误，请用右键菜单运行软件包管理器或通过终端执行 apt-get 来查看具体错误。
错误信息：“错误：已损坏个数>0”。这通常意味着您安装的软件包有未满足的依赖关系。
我根据提示终端运行 apt-get ，得到的信息如下：
apt 1.0.1ubuntu2，用于 amd64 构架，编译于 Apr 10 2014 13:03:40
Usage: apt-get [options] command
apt-get [options] install|remove pkg1 [pkg2 …]
apt-get [options] source pkg1 [pkg2 …]
apt-get is a simple command line interface for downloading and
installing packages. The most frequently used commands are update
and install.
Commands:
update - Retrieve new lists of packages
upgrade - Perform an upgrade
install - Install new packages (pkg is libc6 not libc6.deb)
remove - Remove packages
autoremove - Remove automatically all unused packages
purge - Remove packages and config files
source - Download source archives
build-dep - Configure build-dependencies for source packages
dist-upgrade - Distribution upgrade, see apt-get(8)
dselect-upgrade - Follow dselect selections
clean - Erase downloaded archive files
autoclean - Erase old downloaded archive files
check - Verify that there are no broken dependencies
changelog - Download and display the changelog for the given package
download - Download the binary package into the current directory
Options:
-h This help text.
-q Loggable output - no progress indicator
-qq No output except for errors
-d Download only - do NOT install or unpack archives
-s No-act. Perform ordering simulation
-y Assume Yes to all queries and do not prompt
-f Attempt to correct a system with broken dependencies in place
-m Attempt to continue if archives are unlocatable
-u Show a list of upgraded packages as well
-b Build the source package after fetching it
-V Show verbose version numbers
-c=? Read this configuration file
-o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp
See the apt-get(8), sources.list(5) and apt.conf(5) manual
pages for more information and options.
This APT has Super Cow Powers.
求高手指点，该怎么办？
我是一个完全的Ubuntu小白，所以请求能够详细指点。
谢谢。