不能创建电子邮件的别名在散装谷歌工作区

我有一个脚本。净创建的用户散，并且还创建了一个别名。

用户建立在谷歌的管理控制台，但是，它似乎不完整的电子邮件的别名的信息。 检查后，管理控制台，替代性的电子邮件领域是空白的

这是错误的信息：

谷歌。Api。请求。RequestError用户创建是不完整的。 [412]错误[消息[用户创建是不完整的。] 位[如果配头]的原因[conditionNotMet]域的[全球]]]

这是我的脚本：

// create new Gmail user                    
Google.Apis.Admin.Directory.directory_v1.Data.User newuserbody = new Google.Apis.Admin.Directory.directory_v1.Data.User();
UserName newusername = new UserName();
newuserbody.PrimaryEmail = userEmail;
newusername.GivenName = sFirst;
newusername.FamilyName = sLast;
newuserbody.Name = newusername;
newuserbody.Password = sPass;

Google.Apis.Admin.Directory.directory_v1.Data.User
user = service.Users.Insert(newuserbody).Execute();
user = null;
}

catch (Exception e) {
  LogMessage("CreateGoogleEmailApps", "Error", String.Format("Google user [{0}] could not be created at this time with error: {1}", sUN, e.Message));
}

try {
  // nickname attempt
  Alias newalias = new Alias();
  newalias.AliasValue = string.Format("username-{0}@{1}", sPass, ASAS_Create.Properties.Settings.Default.G_DOMAIN);
  Alias useralias = service.Users.Aliases.Insert(newalias, userEmail).Execute();
  newalias = null;
} catch (Exception e) {
  //LogMessage("CreateGoogleEmailApps", "Error", String.Format("Google user [{0}]'s alias could not be created at this time.", sUN));                    
  LogMessage("CreateGoogleAliasApps", "Error", string.Format("Google Alias Error for user [{0}] with error message[{1}].", sUN, e.Message));
}