internal PackageReference(string name, NuGet.Versioning.VersionRange versionRange)
 {
     _path = NuGetHelper.GetPath(name, versionRange, out _version);
     _name = name;
 }
 internal PackageReference(string name, string version)
 {
     _path    = NuGetHelper.GetPath(name, ref version);
     _name    = name;
     _version = version;
 }