未处理的异常：[cloud_firestore/unknown] 无法在通道上建立连接

Question

我正在尝试在我的应用程序中添加 google_sign_in 功能，当我添加帐户详细信息时，它在控制台中显示错误，并且我没有重定向到另一个屏幕。

这是我的代码

class AuthMethods {
  final FirebaseAuth auth = FirebaseAuth.instance;

  getCurrentUser() async {
    return auth.currentUser;
  }

  signInWithGoogle(BuildContext context) async {
    final FirebaseAuth firebaseAuth = FirebaseAuth.instance;
    final GoogleSignIn googleSignIn = GoogleSignIn();

    final GoogleSignInAccount? googleSignInAccount =
        await googleSignIn.signIn();

    final GoogleSignInAuthentication? googleSignInAuthentication =
        await googleSignInAccount?.authentication;

    final AuthCredential credential = GoogleAuthProvider.credential(
        idToken: googleSignInAuthentication?.idToken,
        accessToken: googleSignInAuthentication?.accessToken);

    UserCredential result = await firebaseAuth.signInWithCredential(credential);

    User? userDetails = result.user;

    if (result != null) {
      Map<String, dynamic> userInfoMap = {
        "email": userDetails!.email,
        "name": userDetails.displayName,
        "imgUrl": userDetails.photoURL,
        "id": userDetails.uid
      };
      await DatabaseMethods()
          .addUser(userDetails.uid, userInfoMap)
          .then((value) {
        Navigator.push(
            context, MaterialPageRoute(builder: (context) => const GoogleUserInfo()));
      });
    }
  }
}

class DatabaseMethods {
  Future addUser(String userId, Map<String, dynamic> userInfoMap) {
    return FirebaseFirestore.instance
        .collection("User")
        .doc(userId)
        .set(userInfoMap);
  }
}

我已尝试更新过时的依赖项，还尝试了 flutter clean 和 flutter pub get 命令，问题仍然存在。

Answer 1

这主要是因为您尚未重新启动模拟器或测试设备。

1. In your terminal, `flutter clean`
2. Go to your `pubspec.yaml`, and update all the dependencies to the latest version by `pub get` then `pub upgrade`.
3. If in VS Code, restart your emulator and VS code completely. 
4. If in Android Studio, go to File> Invalidate Caches> Check true to all the values you see in dialog and let it restart.
5. Try again and it will run.