In order to install Cinerella I typed in terminal:
sudo add-apt-repository ppa:cinelerra-ppa/ppa sudo apt-get update sudo apt-get install cinelerra
But after last command typed, my computer gives me an error below?
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
What should I do (I'm using ubuntu 12.04 Lts)