<PackageReference Include="Microsoft.Packaging.Tools" Version="1.0.0-preview2-25401-01" />

Microsoft.DotNet.Build.Tasks.ILog

public interface ILog
namespace Microsoft.DotNet.Build.Tasks { public interface ILog { void LogError(string message, params object[] messageArgs); void LogMessage(string message, params object[] messageArgs); void LogMessage(LogImportance importance, string message, params object[] messageArgs); void LogWarning(string message, params object[] messageArgs); } }