Exception while loading assemblies: System.IO.FileNotFoundException: Could not load assembly 'System.Net.Http.Extensions, Version=1.5.0.0
Could not install package 'Microsoft.Bcl.Build 1.0.14'. You are trying to install this package into a project that targets 'MonoAndroid,Version=v6.0'
Error CS0117 'Resource.Attribute' does not contain a definition for ...