VLC 无法在 14.04 上安装

Question

我（拼命地）试图在我的 14.04 上安装 VLC。

apt-cache policy vlc

返回：

vlc:
  Installed: (none)
  Candidate: 2.1.6-0ubuntu14.04.1
  Version table:
     2.1.6-0ubuntu14.04.1 0
        500 http://mirror.switch.ch/ftp/mirror/ubuntu/ trusty-updates/universe amd64 Packages
        500 http://mirror.switch.ch/ftp/mirror/ubuntu/ trusty-security/universe amd64 Packages
     2.1.2-2build2 0
        500 http://mirror.switch.ch/ftp/mirror/ubuntu/ trusty/universe amd64 Packages

当我尝试安装时，我遇到了臭名昭著的vlc-nox问题：

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.
 vlc : Depends: vlc-nox (= 2.1.6-0ubuntu14.04.1) but it is not going to be installed
       Recommends: vlc-plugin-notify (= 2.1.6-0ubuntu14.04.1) but it is not going to be installed
       Recommends: vlc-plugin-pulse (= 2.1.6-0ubuntu14.04.1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

尝试安装vlc-nox会导致请求安装libfreerdp1，然后出现此消息：

sudo apt-get install libfreerdp1

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Suggested packages:
  freerdp-x11
The following packages will be REMOVED
  libfreerdp-cache1.1 libfreerdp-client1.1 libfreerdp-codec1.1
  libfreerdp-common1.1.0 libfreerdp-core1.1 libfreerdp-crypto1.1
  libfreerdp-gdi1.1 libfreerdp-locale1.1 libfreerdp-plugins-standard
  libfreerdp-primitives1.1 libfreerdp-rail1.1 libfreerdp-utils1.1
  libwinpr-crt0.1 libwinpr-dsparse0.1 libwinpr-environment0.1 libwinpr-file0.1
  libwinpr-handle0.1 libwinpr-heap0.1 libwinpr-input0.1
  libwinpr-interlocked0.1 libwinpr-library0.1 libwinpr-path0.1
  libwinpr-pool0.1 libwinpr-registry0.1 libwinpr-rpc0.1 libwinpr-sspi0.1
  libwinpr-synch0.1 libwinpr-sysinfo0.1 libwinpr-thread0.1 libwinpr-utils0.1
  libxfreerdp-client1.1 remmina-plugin-rdp
The following NEW packages will be installed
  libfreerdp1

现在，我不明白为什么 vlc 安装会导致删除这些包？有没有办法解决这个问题？

除了添加存储库之外，已经通过了此处、此处、此处、此处、此处建议的（合理的）解决方案。

---

的输出apt-cache policy libfreerdp-cache1.1：

libfreerdp-cache1.1:
  Installed: 1.1.0~git20140921.1.440916e+dfsg1-2ubuntu1~trusty1
  Candidate: 1.1.0~git20140921.1.440916e+dfsg1-2ubuntu1~trusty1
  Version table:
 *** 1.1.0~git20140921.1.440916e+dfsg1-2ubuntu1~trusty1 0
        500 http://ppa.launchpad.net/remmina-ppa-team/remmina-master/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

的输出apt-cache policy remmina-plugin-rdp：

remmina-plugin-rdp:
  Installed: 1.1.1-ppa1+484+201508180831~ubuntu14.04.1
  Candidate: 1.1.1-ppa1+484+201508180831~ubuntu14.04.1
  Version table:
 *** 1.1.1-ppa1+484+201508180831~ubuntu14.04.1 0
        500 http://ppa.launchpad.net/remmina-ppa-team/remmina-master/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status
     1.0.0-4ubuntu3 0
        500 http://mirror.switch.ch/ftp/mirror/ubuntu/ trusty/main amd64 Packages

Answer 1

问题的第一部分是您禁用了不稳定的 PPA 或存储库。请查看此帖子以获取更多信息。这将是解决您的问题的第一步。

清除后，请在终端窗口中输入以下内容。

 sudo apt-get remove --purge vlc-nox
 sudo apt-get autoclean
 sudo dpkg --configure -a
 sudo apt-get -f install
 sudo apt-get autoremove
 sudo apt-get update
 sudo apt-get dist-upgrade
 sudo apt-get install vlc

另一个建议是使用官方 VLC 存储库而不是 Ubuntu 存储库。这些都是最新的，在我看来效率更高。如果您想这样做，请输入以下内容：

 sudo add-apt-repository ppa:videolan/stable-daily
 sudo apt-get update && sudo apt-get upgrade
 sudo apt-get install vlc