有时，当我安装东西时，我会收到如下错误：
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:
package1 : Depends: package2 (>= 1.8) but 1.7.5-1ubuntu1 is to be installed
E: Unable to correct problems, you have held broken packages.
我该如何解决这个问题？
package-management apt ppa dependencies software-installation
注意：旧版 Skype for Linux 应用程序 (v4.*) 现在已停产并从 Canonical 的合作伙伴存储库中删除，因此此问题及其答案已过时。请参阅我们的规范 Skype 安装问题的更新答案。
我在尝试安装 Skype 时收到以下消息：
nidhin@ubuntu:~$ sudo apt-get update
nidhin@ubuntu:~$ sudo apt-get install skype
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 …当我尝试安装系统更新时，skype或phpmyadmin出现此错误：
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
libc6 : Depends: libgcc1 but it is not going to be installed
Depends: tzdata but it is not going to be installed
libc6-dev : Depends: libc-dev-bin (= 2.15-0ubuntu10.3)
Depends: linux-libc-dev but it is not going to be installed
Recommends: gcc but it is not going to be installed or
c-compiler
skype:i386 : Depends: libasound2:i386 (>= 1.0.16) but it …有时，当我跑步时
sudo apt-get update
或安装一个应用程序
sudo apt-get install
我在 gnome-terminal 的底部收到以下错误，我无法删除它。我在软件源和中搜索了它，但y-ppa-manager我不确定我是否想弄乱源列表，因为我有点菜鸟。
Duplicate sources.list entry http://archive.canonical.com/ubuntu/ oneiric/partner amd64 Packages \
(/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_oneiric_partner_binary-amd64_Packages)
我尝试了在此处找到的建议解决方案：
和其他地方，但仍然没有运气。我的系统是从 Ubuntu 14.04 升级的，Skype 运行良好。升级后，Skype 消失了，我无法安装它。所以在尝试了在论坛上找到的一堆解决方案后，我仍然在同一个地方，所以当我输入这个时：
sudo apt-get install skype skype-bin
我明白了
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 …