我尝试安装ubuntu-restricted-extras和vlc，
但收到此信息：
$ sudo apt-get install ubuntu-restricted-extras
[sudo] password for aashay:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package ubuntu-restricted-extras
$ sudo apt-get install vlc
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package vlc
答案1
要安装最新的 vlc 版本：
sudo add-apt-repository ppa:djcj/vlc-stable
sudo apt-get update && sudo apt-get install vlc