我无法使用google_sign_in在flutter中登录我的谷歌帐户

dependencies:
  google_sign_in: ^4.5.1

import 'package:google_sign_in/google_sign_in.dart';

final GoogleSignIn _googleSignIn = GoogleSignIn(
  scopes: [
    'email',
    'https://www.googleapis.com/auth/contacts.readonly',
  ],
);

Future<void> _handleSignIn() async {
  try {
    await _googleSignIn.signIn();
  } catch (error) {
    print(error);
  }
}

_googleSignIn.signIn().then((GoogleSignInAccount account) {
  // 登录成功，可以获取用户信息
  print('User signed in: ${account.displayName}');
}).catchError((error) {
  // 登录失败，处理错误
  print('Error signing in: $error');
});