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当我输入 apt-get -f install 时，我收到错误消息

tag-icon • tag-icon 12.04
当我输入 apt-get -f install 时，我收到错误消息 
xserver-xorg-core (2:1.11.4-0ubuntu10.8) breaks xserver-xorg-video-5 and is installed.

另外我无法升级我的软件，它说软件包系统已损坏，详细信息如下：

The following packages have unmet dependencies:

xserver-xorg-core: Depends: xserver-common (>= 2:1.11.4-0ubuntu10.8) but 2:1.11.4-0ubuntu10.8 is installed

当我发出时sudo apt-get update，输出似乎很好，来源是（抱歉，输出有太多链接，我无法发布）；http://archive.ubuntu.com

Reading package lists... Done

======================

当我发出时sudo apt-get dist-upgrade，输出是：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 xserver-xorg-core : Breaks: xserver-xorg-video-5
E: Unmet dependencies. Try using -f.

=================== 当我发出“sudo apt-get -f install”时，输出是：

dpkg: dependency problems prevent configuration of xserver-xorg-video-radeon:
    xserver-xorg-core (2:1.11.4-0ubuntu10.8) breaks xserver-xorg-video-5 and is installed.      
    xserver-xorg-video-radeon (1:6.12.1-0ubuntu2) provides xserver-xorg-video-5.
    dpkg: error processing xserver-xorg-video-radeon (--configure):dependency problems leaving unconfigured
    No apport report written because the error message indicates its a followup error from a previous failure.
    Errors were encountered while processing: xserver-xorg-video-radeon
    E: Sub-process /usr/bin/dpkg returned an error code (1)

答案1

我搜索了一下，发现这个包xserver-xorg-video-5是Debian 虚拟包。

通常这个包在 Ubuntu 中不存在。如果你运行命令

sudo apt-get install xserver-xorg-video-5结果将是

Package xserver-xorg-video-5 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'xserver-xorg-video-5' has no installation candidate

因此，我假设您已经添加了外部源（PPA）来安装这个破坏了您的系统的包。

我的建议是使用 ppa-purge 程序清除您添加的 ppa。

sudo apt-get install ppa-purge 
sudo ppa-purge <ppa-name>
sudo apt-get update
sudo apt-get dist-upgrade

如果您不知道应该清除哪些 ppa，请全部清除。外部源（存储库）有时会干扰必要的系统包，并发生类似这样的问题。（系统崩溃）

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