internal Guid? getOrCreateStagedUserId()
            {
                string path = Path.Combine(rootAppDirectory, "packages", ".betaId");
                Guid result = default(Guid);
                try
                {
                    if (!Guid.TryParse(File.ReadAllText(path, Encoding.UTF8), out result))
                    {
                        throw new Exception("File was read but contents were invalid");
                    }
                    this.Log().Info("Using existing staging user ID: {0}", result.ToString());
                    return result;
                }
// ..etc