Connect to Oracle using Xamarin Forms PCL

Hi,

I am trying to connect to Oracle from my Xamarin Forms PCL project.

I added the Nuget Oracle.manageddataAccess but getting:

Could not install package 'Oracle.ManagedDataAccess 12.2.1100'. You are trying to install this package into a project that targets '.NETPortable,Version=v4.5,Profile=Profile111', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.

How can I solve this please?

Thanks,
Jassim