Hey,
(Add the Mono Project GPG signing key and the package repository to your
system (if you don’t use sudo, be sure to switch to root):
I install in this link http://www.mono-project.com/docs/getting-started/install/linux/#debian-ubuntu-and-derivatives.
Command:
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
echo “deb http://download.mono-project.com/repo/debian wheezy main” | sudo tee /etc/apt/sources.list.d/mono-xamarin.list
sudo apt-get update
After install this command:
sudo apt-get install mono-devel && sudo apt-get install mono-complete && sudo apt-get install referenceassemblies-pcl && sudo apt-get install ca-certificates-mono
File conflict is solved =)