方法 'signInWithAnonymously' 没有为类型 'FirebaseAuth' 定义

The method 'signInWithAnonymously' isn't defined for the type 'FirebaseAuth'

我在 Firebase 的帮助下创建匿名登录时遇到了这个问题。

import 'package:firebase_auth/firebase_auth.dart';

class AuthServices {
  final FirebaseAuth _auth = FirebaseAuth.instance;

  //sign in anonymous

  Future signInAnon() async {
    UserCredential result = await _auth.signInWithAnonymously();
  }
}

您需要使用.signInAnonymously()

  Future signInAnon() async {
    UserCredential result = await _auth.signInAnonymously();
  }