The package Microsoft.NET.ILLink.Tasks inside the ILLink.Tasks.csproj project file was commented out because it would collide with the package name set in the versions.props and Version.Details.xml generating a warning for a cycle. If the packageId is commented there will be two packages the one in versions.props Microsoft.NET.ILLink.Tasks and the one generated by ILLink.Tasks.csproj which by default will be named ILLink.Tasks (without "Microsoft.NET."). At some point the illink project should be consumed by building live bits and feeding them to things like the libraries testing, after this we can delete the package from the versions.props and Version.Details.xml. If there is no clash between package names then the PackageId can be uncommented