android - 断言失败：第 38 行 pos 12：'displayName != null'：不正确

Question

Firebase Flutter 登录出现错误

04-28 14:31:21.261 7687-8012/com.companyname.firebaselogin I/flutter：'package:google_sign_in/google_sign_in.dart'：断言失败：第 38 行：'displayName != null'：不正确。

使用与记录的代码相同的 -

Future<FirebaseUser> _handleSignIn() async {
final GoogleSignIn _googleSignIn = new GoogleSignIn();
GoogleSignInAccount googleUser = await _googleSignIn.signIn();

GoogleSignInAuthentication googleAuth = await googleUser.authentication;
FirebaseUser user = await _auth.signInWithGoogle(
  accessToken: googleAuth.accessToken,
  idToken: googleAuth.idToken,
);
print("signed in " + user.displayName);
return user;
}

firebase_auth: "^0.5.5"

google_sign_in: "^3.0.2"