凭据的对话框(谷歌表单)已成功打开,但在我填写凭据后,我得到这个错误。我是按照这里的指示做的。创建了一个Firebase项目,启用谷歌驱动器API(这是我现在需要的)从谷歌API控制台。

抛出异常的代码:

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

await _googleSignIn.signIn();

这是堆栈跟踪:

E/flutter ( 5068): [ERROR:flutter/shell/common/shell.cc(184)] Dart Error: Unhandled exception:
E/flutter ( 5068): PlatformException(sign_in_failed, com.google.android.gms.common.api.ApiException: 10: , null)
E/flutter ( 5068): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:551:7)
E/flutter ( 5068): #1      MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:292:18)
E/flutter ( 5068): <asynchronous suspension>
E/flutter ( 5068): #2      GoogleSignIn._callMethod (package:google_sign_in/google_sign_in.dart:226:58)
E/flutter ( 5068): <asynchronous suspension>
E/flutter ( 5068): #3      GoogleSignIn._addMethodCall (package:google_sign_in/google_sign_in.dart:268:20)
E/flutter ( 5068): #4      GoogleSignIn.signIn (package:google_sign_in/google_sign_in.dart:339:48)
E/flutter ( 5068): #5      ThatsMyComponentState.theSignInFuction.<anonymous closure> (package:my_app/widgets/my_file.dart:666:45)
E/flutter ( 5068): <asynchronous suspension>
E/flutter ( 5068): #6      _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:507:14)
E/flutter ( 5068): #7      _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:562:30)
E/flutter ( 5068): #8      GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:102:24)
E/flutter ( 5068): #9      TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:242:9)
E/flutter ( 5068): #10     TapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:204:7)
E/flutter ( 5068): #11     GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:156:27)
E/flutter ( 5068): #12     _WidgetsFlutterBinding&BindingBase&GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:184:20)
E/flutter ( 5068): #13     _WidgetsFlutterBinding&BindingBase&GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:158:22)
E/flutter ( 5068): #14     _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:138:7)
E/flutter ( 5068): #15     _WidgetsFlutterBinding&BindingBase&GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:101:7)
E/flutter ( 5068): #16     _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:85:7)
E/flutter ( 5068): #17     _invoke1 (dart:ui/hooks.dart:168:13)
E/flutter ( 5068): #18     _dispatchPointerDataPacket (dart:ui/hooks.dart:122:5)

google_sign_in插件版本为4.0.0。

这是颤振doctot -v的输出:

[√] Flutter (Channel stable, v1.0.0, on Microsoft Windows [Version 10.0.17763.253], locale en-US)
• Flutter version 1.0.0 at C:\src\flutter-0.7.3\flutter
• Framework revision 5391447fae (10 weeks ago), 2018-11-29 19:41:26 -0800
• Engine revision 7375a0f414
• Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

[√] Android toolchain - develop for Android devices (Android SDK 28.0.3)
• Android SDK at C:\Users\myuser\AppData\Local\Android\Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.3
• ANDROID_HOME = C:\Users\myuser\AppData\Local\Android\Sdk
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
• All Android licenses accepted.

[√] Android Studio (version 3.3)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 32.0.1
• Dart plugin version 182.5124
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)

[!] IntelliJ IDEA Community Edition (version 2018.1)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.1.6
X Flutter plugin not installed; this adds Flutter specific functionality.
X Dart plugin not installed; this adds Dart specific functionality.
• For information about installing plugins, see
  https://flutter.io/intellij-setup/#installing-the-plugins

[!] VS Code, 64-bit edition (version 1.30.2)
• VS Code at C:\Program Files\Microsoft VS Code
• Flutter extension not installed; install from
  https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[√] Connected device (1 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 8.1.0 (API 27) (emulator)

! Doctor found issues in 2 categories.

任何帮助都将不胜感激。谢谢!


当前回答

这为我解决了问题。我在一个新项目中做了一个小的重构。我以为我用的是以前的谷歌服务。json文件,但我一直在使用错误的文件。我尝试了两天,才发现这个简单的错误。

其他回答

以及其他人建议的步骤 运行 。/ gradlew清洁 为我工作。

为了让google_sign_in正常工作,您可能需要采取其他步骤:

连接GooglePlay与Firebase [(https://github.com/flutter/flutter/issues/27599)

如果您可以在调试期间运行谷歌登录,但不能在发布期间运行,则很有可能您没有将发布密钥的SHA1和SHA256添加到firebase。 要获得发布密钥的sha,使用keytool -list -v -keystore ~/key。JKS -alias键

您最终应该得到至少6个SHA凭据:2个来自调试键,2个来自谷歌播放链接,2个来自发布键。请注意,您不需要重新下载google服务。在firebase中添加发布SHA凭据后,生成的。

添加GooglePlay Proguard规则(https://github.com/flutter/flutter/issues/19102)

# Flutter Wrapper
-keep class io.flutter.app.** { *; }
-keep class io.flutter.plugin.**  { *; }
-keep class io.flutter.util.**  { *; }
-keep class io.flutter.view.**  { *; }
-keep class io.flutter.**  { *; }
-keep class io.flutter.plugins.**  { *; }

# GooglePlay Services
-keep class com.google.android.gms.** { *; }
-dontwarn com.google.android.gms.**
-keep class com.google.common.** { *; }
-dontwarn com.google.common.**

当我遇到这个问题时,我尝试了这篇文章中描述的所有其他解决方案。这些都没用。最终我明白了:在我的情况下,我必须确保我的“支持电子邮件”设置。

在我的情况下,这是一个愚蠢的错误,确保你的applicationId在firebase像:com.example。appname与app/src/build中的applicationId完全匹配。gradle文件,在defaultConfig{}下。没有拼写错误,没有大写或小写字母冲突。在我的例子中,一个字母是大写的,这导致了所有的问题。

这对我有帮助(导入SHA1是一个问题)

cd .android 我使用并复制了SHA1密钥,并粘贴在firebase,项目配置,android应用程序,SHA证书

keytool -list -v -keystore debug.keystore -aka androiddebugkey -storepass android -keypass android

我还创建了一个键:

keytool -genkey -v -keystore debug.keystore -storepass android -alias android debugkeytwo -keypass android -keyalg rsa -keysize 2048 -有效期 10000

并使用这个来获取更多的SHA密钥:

KeyTool -List -V -KeyStore Debug.KeyStore -alias AndroidDebugKeyTwo -StorePass Android -KeyPass Android

我复制和粘贴添加一个更多的关键在我的firebase项目。

还下载了谷歌服务。json,并粘贴在Android/app内的颤振项目。

这很正常,我的pubspec。yml depencies:

  http: ^0.12.0+2
  cupertino_icons: ^0.1.2
  firebase_auth: ^0.15.1
  firebase_analytics: ^5.0.6
  firebase_core: ^0.4.2+1
  google_sign_in: ^4.0.14

我的代码:

    Widget _signInButton() {
    return OutlineButton(
      splashColor: Colors.grey,
      onPressed: () async {
        await signInWithGoogle()
            .then((FirebaseUser user) => print(user.displayName))
            .catchError((e) => print(e));

      },

    );
  }

import 'package:firebase_auth/firebase_auth.dart';
import 'package:google_sign_in/google_sign_in.dart';

final FirebaseAuth _auth = FirebaseAuth.instance;
final GoogleSignIn googleSignIn = new GoogleSignIn();

Future<FirebaseUser> signInWithGoogle() async {
  final GoogleSignInAccount googleSignInAccount = await googleSignIn.signIn();
  final GoogleSignInAuthentication googleSignInAuthentication =
      await googleSignInAccount.authentication;

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

  final AuthResult authResult = await _auth.signInWithCredential(credential);
  final FirebaseUser user = authResult.user;
  print(user.displayName.toString());
  assert(!user.isAnonymous);
  assert(await user.getIdToken() != null);

  final FirebaseUser currentUser = await _auth.currentUser();
  assert(user.uid == currentUser.uid);

  return user;
}

void signOutGoogle() async {
  await googleSignIn.signOut();

  print("User Sign Out");
}

我希望这能奏效。