curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
sudo mv microsoft.gpg /etc/apt/trusted.gpg.d/microsoft.gpg
sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-trusty-prod trusty main" > /etc/apt/sources.list.d/dotnetdev.list'
sudo apt-get update
sudo apt-get install dotnet-sdk-2.0.2

The following packages have unmet dependencies:
 dotnet-sdk-2.0.2 : Depends: dotnet-runtime-2.0.0 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.