在新行创建时设置指针的问题

Question

我正在使用 Parse 服务器处理 flutter 应用程序，我希望在创建新用户时向其注入合作伙伴指针，但我得到了：

预期指针的架构不匹配，但得到 object

我的用户 class：

class User extends ParseUser implements ParseCloneable {
  User(String username, String password, String emailAddress)
      : super(username, password, emailAddress);

  User.clone() : this(null, null, null);

  @override
  User clone(Map<String, dynamic> map) => User.clone()..fromJson(map);

  static const String nameKey = 'name';
  static const String surnameKey = 'surname';
  static const String phoneKey = 'phone';
  static const String isDriverKey = 'isDriver';
  static const String countryCodeKey = 'countryCode';
  static const String partnerKey = 'partner';

  String get name => get<String>(nameKey);
  String get surname => get<String>(surnameKey);
  String get phone => get<String>(phoneKey);
  String get countryCode => get<String>(countryCodeKey);
  Partner get partner =>
      Partner().clone(get<ParseObject>(partnerKey)?.toJson(full: true));

  set name(String value) => set<String>(nameKey, value);
  set surname(String value) => set<String>(surnameKey, value);
  set phone(String value) => set<String>(phoneKey, value);
  set countryCode(String value) => set<String>(countryCodeKey, value);
  set partner(Partner value) => set<Partner>(partnerKey, value);

  ParseGeoPoint get position => get<ParseGeoPoint>(positionKey);
  set position(ParseGeoPoint value) => set<ParseGeoPoint>(positionKey, value);

  String get fullname => '$name $surname';
  String get isVerifiedMsg =>
      emailVerified ?? false ? '' : '(' + 'isVerified'.tr + ')';
}

我的问题是何时我将使用此方法从用户服务登录：

static Future<void> signUp(
      {String username,
      String password,
      String name,
      String surname,
      String phone,
      Function onComplete}) async {
    print(globalPartner);
    final User user = User(username, password, username)
      ..name = name
      ..surname = surname
      ..phone = phone
      ..emailVerified = true
      ..countryCode = globalPartner.countryCode
      ..partner = globalPartner; //Here is the problem (Nb: globalPartner is of type Partner)
    await user.save().then((response) async {
      if (response.success) {
        Get.offNamed('/login');
        AlertUtils.showSuccessDialog('Le compte est créé');
      } else
        AlertUtils.showErrorDialog(response.error.message);
    }).catchError((e) {
      print(e);
    }).whenComplete(() => onComplete?.call());
  }