为了安装 Cinerella，我在终端中输入：
sudo add-apt-repository ppa:cinelerra-ppa/ppa
sudo apt-get update
sudo apt-get install cinelerra
但是在输入最后一个命令后，我的计算机出现了下面的错误？
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package cinelerra 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 'cinelerra' has no installation candidate
我该怎么办（我正在使用 ubuntu 12.04 Lts）
答案1
据官方称网站您需要安装的命令是
sudo apt-get install cinelerra-cv