我尝试在现有帐户中添加一个多因素身份验证，该帐户是用google登录的。
我收到错误“先验证电子邮件”：
[SmsRetrieverHelper]短信验证码请求失败：未知状态代码：17086在注册第二个因素之前需要先验证电子邮件。
看来我得验证一下google邮箱地址了。我的问题是我是否必须通过电子邮件和密码登录再次验证用户**。与：

final credential = EmailAuthProvider.credential(email: emailAddress, password: password);

字符串
然后链接google和email auth提供商，如下所述：https://firebase.google.com/docs/auth/flutter/account-linking?authuser=0
或者我必须使用“电子邮件链接验证”，如此处所述：https://firebase.google.com/docs/auth/flutter/email-link-auth?authuser=0的
或者有没有一种完全不同的、更简单的方法来验证谷歌帐户的电子邮件地址？
使用代码：

final GoogleSignIn googleSignIn = GoogleSignIn();

Future<UserCredential> signInWithGoogle(BuildContext context) async {
  // Trigger the authentication flow
  final GoogleSignInAccount? googleUser = await (googleSignIn.signIn());

  // Obtain the auth details from the request
  final GoogleSignInAuthentication? googleAuth = await googleUser?.authentication;

  // Create a new credential
  final credential = GoogleAuthProvider.credential(
    accessToken: googleAuth?.accessToken,
    idToken: googleAuth?.idToken,
  );

  // Once signed in, return the UserCredential
  final UserCredential authResult = await FirebaseAuth.instance.signInWithCredential(credential);

  String? name = authResult.user?.displayName;
  final String? email = authResult.user?.providerData[0].email ;
  final String? imageUrl = authResult.user?.photoURL;

  //Only taking the first part of the name, i.e., First Name
  if (name!.contains(" ")) {
    name = name.substring(0, name.indexOf(" "));
  }

  print(name);
  print(email);
  print(imageUrl);
  print(authResult.user?.emailVerified);

  return authResult;
}

型