Hi Guys.
So with Struggling for two weeks with no success to install sonar due to this error -> nzbdrone : Depends: libmono-cil-dev (>= 3.2) but it is not going to be installed as all the repos I tried looks faulty.
I have finally got the solution that helped me and I thought sharing this info with the other folks that might have the same issue and are feeling so demotivated to get Sonarr runing. I hope this will help.
First remove all previous repos you added for Sonarr.
sudo -s
password
nano /etc/apt/sources.list Remove all nzbdrone repos added.
nano /etc/apt/sources.list.d/nzbdrone.list Remove everything in the file
Second add new Repos
add-apt-repository "deb http://us.archive.ubuntu.com/ubuntu/ trusty universe multiverse"
add-apt-repository “deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe multiverse”
Third Clean apt file list
apt-get clean
apt-get autoclean
Fourth Update Apt
apt-get update
Fifth Install libmono-cil-dev with other goodies needed
apt-get install -qy libmono-cil-dev mediainfo sqlite3 wget unrar
Sixth Install Sonarr
add-apt-repository "deb http://apt.sonarr.tv/ master main"
apt-get install nzbdrone
Seventh Start and Enjoy
mono /opt/NzbDrone/NzbDrone.exe
open in browser http://localhost:8989
I hope this help someone. This worked for me to get Sonarr installed