I just had this very same problem,after downloading Mac OS Sierra 6.0GB Archive Manager gave me the same error as described here, I went and installed unrar and problem solved.
sudo apt-get install unrar
Note: I am running a clean install of Ubuntu 16.10 daily build (Yakety Yak)
I just had this very same problem,after downloading Mac OS Sierra 6.0GB Archive Manager gave me the same error as described here, I went and installed unrar and problem solved.
sudo apt-get install unrar
Note: I am running a clean install of Ubuntu 16.10 daily build (Yakety Yak)