谁能帮我解决这个颤振错误，我正在学习颤振？答案

【问题标题】：Can anyone help me on this flutter error, i am learning flutter?谁能帮我解决这个颤振错误，我正在学习颤振？
【发布时间】：2020-10-15 14:12:43
【问题描述】：

目前我正在使用带有 firebase 的颤振来添加登录 facebook 和 google。现在，当我在所有文档的帮助下添加 facebook 登录时。我不知道应用程序有什么问题。它仅在应用程序运行时显示 CircularprocessingIndicator。 终端出错

 Launching lib/main.dart on POCO F1 in debug mode...
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
Running Gradle task 'assembleDebug'...                                  
                                                   
Running Gradle task 'assembleDebug'... Done                       150.7s (!)
✓ Built build/app/outputs/apk/debug/app-debug.apk.
Installing build/app/outputs/apk/app.apk...                         9.1s
W/FlutterActivity( 3108): Tried to automatically register plugins with FlutterEngine (io.flutter.embedding.engine.FlutterEngine@7fcef82) but could not find and invoke the GeneratedPluginRegistrant.
I/le.helloflutte( 3108): Background concurrent copying GC freed 88786(4991KB) AllocSpace objects, 52(1876KB) LOS objects, 49% free, 3313KB/6627KB, paused 5.473ms total 97.924ms
W/Gralloc3( 3108): mapper 3.x is not supported                          
I/Choreographer( 3108): Skipped 37 frames!  The application may be doing too much work on its main thread.
Syncing files to device POCO F1...                                 663ms

Flutter run key commands.
r Hot reload. ????????????
R Hot restart.
h Repeat this help message.
d Detach (terminate "flutter run" but leave application running).
c Clear the screen
q Quit (terminate the application on the device).
An Observatory debugger and profiler on POCO F1 is available at: http://127.0.0.1:43387/ciERcuBRCco=/
E/flutter ( 3108): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: MissingPluginException(No implementation found for method startListeningAuthState on channel plugins.flutter.io/firebase_auth)
E/flutter ( 3108): #0      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:154:7)
E/flutter ( 3108): <asynchronous suspension>
E/flutter ( 3108): #1      MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:329:12)
E/flutter ( 3108): #2      MethodChannelFirebaseAuth.onAuthStateChanged.<anonymous closure> (package:firebase_auth_platform_interface/src/method_channel_firebase_auth.dart:308:25)
E/flutter ( 3108): #3      _runGuarded (dart:async/stream_controller.dart:820:24)
E/flutter ( 3108): #4      _BroadcastStreamController._subscribe (dart:async/broadcast_stream_controller.dart:215:7)
E/flutter ( 3108): #5      _ControllerStream._createSubscription (dart:async/stream_controller.dart:833:19)
E/flutter ( 3108): #6      _StreamImpl.listen (dart:async/stream_impl.dart:475:9)
E/flutter ( 3108): #7      new _ForwardingStreamSubscription (dart:async/stream_pipe.dart:125:10)
E/flutter ( 3108): #8      _ForwardingStream._createSubscription (dart:async/stream_pipe.dart:93:16)
E/flutter ( 3108): #9      _ForwardingStream.listen (dart:async/stream_pipe.dart:88:12)
E/flutter ( 3108): #10     new _ForwardingStreamSubscription (dart:async/stream_pipe.dart:125:10)
E/flutter ( 3108): #11     _ForwardingStream._createSubscription (dart:async/stream_pipe.dart:93:16)
E/flutter ( 3108): #12     _ForwardingStream.listen (dart:async/stream_pipe.dart:88:12)
E/flutter ( 3108): #13     _StreamBuilderBaseState._subscribe (package:flutter/src/widgets/async.dart:137:37)
E/flutter ( 3108): #14     _StreamBuilderBaseState.initState (package:flutter/src/widgets/async.dart:111:5)
E/flutter ( 3108): #15     StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4640:58)
E/flutter ( 3108): #16     ComponentElement.mount (package:flutter/src/widgets/framework.dart:4476:5)
E/flutter ( 3108): #17     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
E/flutter ( 3108): #18     Element.updateChild (package:flutter/src/widgets/framework.dart:3214:18)
E/flutter ( 3108): #19     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4527:16)
E/flutter ( 3108): #20     Element.rebuild (package:flutter/src/widgets/framework.dart:4218:5)
E/flutter ( 3108): #21     ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4481:5)
E/flutter ( 3108): #22     ComponentElement.mount (package:flutter/src/widgets/framework.dart:4476:5)
E/flutter ( 3108): #23     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
E/flutter ( 3108): #24     Element.updateChild (package:flutter/src/widgets/framework.dart:3214:18)
E/flutter ( 3108): #25     SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5830:14)
E/flutter ( 3108): #26     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
E/flutter ( 3108): #27     Element.updateChild (package:flutter/src/widgets/framework.dart:3214:18)
E/flutter ( 3108): #28     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4527:16)
E/flutter ( 3108): #29     Element.rebuild (package:flutter/src/widgets/framework.dart:4218:5)
E/flutter ( 3108): #30     ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4481:5)
E/flutter ( 3108): #31     ComponentElement.mount (package:flutter/src/widgets/framework.dart:4476:5)
E/flutter ( 3108): #32     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
E/flutter ( 3108): #33     Element.updateChild (package:flutter/src/widgets/framework.dart:3214:18)
E/flutter ( 3108): #34     SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5830:14)
E/flutter ( 3108): #35     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
E/flutter ( 3108): #36     Element.updateChild (package:flutter/src/widgets/framework.dart:3214:18)
E/flutter ( 3108): #37     SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5830:14)
E/flutter ( 3108): #38     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
E/flutter ( 3108): #39     Element.updateChild (package:flutter/src/widgets/framework.dart:3214:18)
E/flutter ( 3108): #40     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4527:16)
E/flutter ( 3108): #41     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4675:11)
E/flutter ( 3108): #42     Element.rebuild (package:flutter/src/widgets/framework.dart:4218:5)
E/flutter ( 3108): #43     ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4481:5)
E/flutter ( 3108): #44     StatefulElement._firstBuild (package:flutter/
I/le.helloflutte( 3108): ProcessProfilingInfo new_methods=2821 is saved saved_to_disk=1 resolve_classes_delay=8000

使用流生成器检查的登陆页面。

import 'package:helloflutter/app/home_page.dart';
import 'package:helloflutter/app/service/firebase_auth.dart';
import 'package:helloflutter/app/sign_in/sign_in_page.dart';
import 'package:flutter/material.dart';
import 'service/firebase_auth.dart';

class LandingPage extends StatelessWidget {
  LandingPage({@required this.auth});
  final AuthBase auth;

  @override
  Widget build(BuildContext context) {
    return StreamBuilder<User>(
      stream: auth.onAuthStateChanged,
      builder: (context, snapshot) {
        if (snapshot.connectionState == ConnectionState.active) {
          User user = snapshot.data;
          if (user == null) {
            return SignInPage(
              auth: auth,
            );
          }
          return HomePage(
            auth: auth,
          );
        } else {
          return Scaffold(
            body: Center(
              child: CircularProgressIndicator(),
            ),
          );
        }
      },
    );
  }
}

【问题讨论】：

请选择一个能描述您的问题的标题，以便吸引其他可能提供帮助的用户的注意
您是在 Application 类中添加了 FlutterFirebaseMessagingService.setPluginRegistrant(this) 还是覆盖了 fun registerWith(registry: PluginRegistry?) { registry?.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin") ; }
这能回答你的问题吗？ Flutter with firestore missing method
你添加了firebase_core包吗？

标签： firebase flutter firebase-authentication flutter-dependencies

【解决方案1】：

您似乎缺少firebase_auth package。确保这在您的 pubspec 中：firebase_auth: ^0.16.1（或您要使用的任何版本），然后将其导入到您的文件中，例如：

import 'package:firebase_auth/firebase_auth.dart';

在您的代码中只有“import service/firebase_auth.dart”，我猜这是您定义了一些代码的本地文件。

【讨论】：