Sounds like you don't have friends-app installed. The -app package provides the actual application that you would run and interact with (friends itself is just a backend that runs invisibly in the background). Try this command:
sudo apt-get install friends-app
Sounds like you don't have friends-app installed. The -app package provides the actual application that you would run and interact with (friends itself is just a backend that runs invisibly in the background). Try this command:
sudo apt-get install friends-app