Firebase 在颤振中使用多供应器和耗电元件时出错
我最近更新了firebase依赖项。我不推荐这样做，顺便说一句，我的经历很糟糕。谷歌不知道应该遵循什么命名约定 在更新和修复了所有由它们引起的错误后，我尝试运行我的应用程序，并得到了初始化firebase错误。在那个错误得到缓解之后，我似乎遇到了一个我无法解决的错误 这是相关代码Firebase 在颤振中使用多供应器和耗电元件时出错,firebase,flutter,google-cloud-firestore,google-authentication,flutter-provider,Firebase,Flutter,Google Cloud Firestore,Google Authentication,Flutter Provider,我最近更新了firebase依赖项。我不推荐这样做，顺便说一句，我的经历很糟糕。谷歌不知道应该遵循什么命名约定 在更新和修复了所有由它们引起的错误后，我尝试运行我的应用程序，并得到了初始化firebase错误。在那个错误得到缓解之后，我似乎遇到了一个我无法解决的错误 这是相关代码 Widget build(BuildContext context) { return StreamProvider<UserTutor>.value( value: AuthSer
Widget build(BuildContext context) {
return StreamProvider<UserTutor>.value(
value: AuthService().user,
child: Consumer<UserTutor>(
builder: (_, user, __) {
return MultiProvider(
providers: [
user == null
? StreamProvider<Tutor>.value(
value: DatabaseService().streamTutor,
)
: StreamProvider<Tutor>.value(
value: DatabaseService(uid: user.uid).streamTutor,
),
user == null
? StreamProvider<List<ClassData>>.value(
value: DatabaseService().classdata)
: StreamProvider<List<ClassData>>.value(
value: DatabaseService(uid: user.uid).classdata),
],
child: MaterialApp(
home: Wrapper(),
debugShowCheckedModeBanner: false,
),
);
},
));
}
final FirebaseAuth _auth = FirebaseAuth.instance;
final GoogleSignIn googleSignIn = GoogleSignIn();
//create user obj based on firebase user
UserTutor _userFromFirebaseUser(User user) {
return user != null ? UserTutor(uid: user.uid, email: user.email) : null;
}
//auth change user stream
Stream<UserTutor> get user {
return _auth
.authStateChanges()
.map((User user) => _userFromFirebaseUser(user));
}
小部件构建（构建上下文）{
返回StreamProvider.value(
值：AuthService（）。用户，
儿童：消费者(
生成器：（uu，用户，uu）{
回程多供应商(
供应商：[
用户==null
？StreamProvider.value(
值：DatabaseService（）.streamTutor，
)
：StreamProvider.value(
值：DatabaseService（uid:user.uid）.streamTutor，
),
用户==null
？StreamProvider.value(
值：DatabaseService（）.classdata）
：StreamProvider.value(
值：DatabaseService（uid:user.uid）.classdata），
],
孩子：MaterialApp(
主：Wrapper（），
debugShowCheckedModeBanner:false，
),
);
},
));
}
final FirebaseAuth _auth=FirebaseAuth.instance；
最终谷歌签名谷歌签名=谷歌签名（）；
//基于firebase用户创建用户obj
UserTutor\u userFromFirebaseUser（用户）{
返回用户！=null？UserTutor（uid:user.uid，email:user.email）：null；
}
//身份验证更改用户流
流获取用户{
返回_auth
.authStateChanges（）
.map（（用户）=>\u userFromFirebaseUser（用户））；
}
flutter: ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
flutter: The following assertion was thrown building Consumer<UserTutor>(dirty, dependencies:
flutter: [_InheritedProviderScope<UserTutor>]):
flutter: a collection path must point to a valid collection.
flutter: 'package:cloud_firestore/src/firestore.dart':
flutter: Failed assertion: line 74 pos 12: 'isValidCollectionPath(collectionPath)'
flutter:
flutter: The relevant error-causing widget was:
flutter: Consumer<UserTutor>
flutter: file:///Users/devintripp/Desktop/flutter_apps.no_sync/discoverytutors/lib/main.dart:25:16
flutter:
flutter: When the exception was thrown, this was the stack:
flutter: #2 FirebaseFirestore.collection (package:cloud_firestore/src/firestore.dart:74:12)
flutter: #3 new DatabaseService (package:disc_t/Services/database.dart:19:34)
flutter: #4 MyApp.build.<anonymous closure> (package:disc_t/main.dart:37:32)
flutter: #5 Consumer.buildWithChild (package:provider/src/consumer.dart:175:19)
flutter: #6 SingleChildStatelessWidget.build (package:nested/nested.dart:260:41)
flutter: #7 StatelessElement.build (package:flutter/src/widgets/framework.dart:4620:28)
flutter: #8 SingleChildStatelessElement.build (package:nested/nested.dart:280:18)
flutter: #9 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4546:15)
flutter: #10 Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
flutter: #11 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4525:5)
flutter: #12 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4520:5)
flutter: #13 SingleChildWidgetElementMixin.mount (package:nested/nested.dart:223:11)
flutter: #14 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3490:14)
flutter: #15 Element.updateChild (package:flutter/src/widgets/framework.dart:3258:18)
flutter: #16 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
flutter: #17 _InheritedProviderScopeElement.performRebuild (package:provider/src/inherited_provider.dart:426:11)
flutter: #18 Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
flutter: #19 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4525:5)
flutter: #20 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4520:5)
flutter: ... Normal element mounting (7 frames)
flutter: #27 SingleChildWidgetElementMixin.mount (package:nested/nested.dart:223:11)
flutter: ... Normal element mounting (7 frames)
flutter: #34 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3490:14)
flutter: #35 Element.updateChild (package:flutter/src/widgets/framework.dart:3258:18)
flutter: #36 RenderObjectToWidgetElement._rebuild (package:flutter/src/widgets/binding.dart:1174:16)
flutter: #37 RenderObjectToWidgetElement.mount (package:flutter/src/widgets/binding.dart:1145:5)
flutter: #38 RenderObjectToWidgetAdapter.attachToRenderTree.<anonymous closure> (package:flutter/src/widgets/binding.dart:1087:17)
flutter: #39 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2620:19)
flutter: #40 RenderObjectToWidgetAdapter.attachToRenderTree (package:flutter/src/widgets/binding.dart:1086:13)
flutter: #41 WidgetsBinding.attachRootWidget (package:flutter/src/widgets/binding.dart:927:7)
flutter: #42 WidgetsBinding.scheduleAttachRootWidget.<anonymous closure> (package:flutter/src/widgets/binding.dart:908:7)
flutter: (elided 13 frames from class _AssertionError, class _RawReceivePortImpl, class _Timer, dart:async, and dart:async-patch)
flutter:
颤振：══╡ WIDGETS库捕获到异常╞═══════════════════════════════════════════════════════════
颤振：在构建使用者时抛出了以下断言（脏的，依赖项：
颤振：[[u InheritedProviderScope]）：
颤振：集合路径必须指向有效集合。
flatter:'package:cloud\u firestore/src/firestore.dart'：
颤振：失败的断言：第74行位置12：“isValidCollectionPath（collectionPath）”
颤振：
颤振：导致错误的相关小部件是：
颤振：消费者
颤振：file:///Users/devintripp/Desktop/flutter_apps.no_sync/discoverytutors/lib/main.dart:25:16
颤振：
颤振：抛出异常时，这是堆栈：
flatter:#2 FirebaseFirestore.collection（包：cloud_firestore/src/firestore.dart:74:12）
flatter:#3新数据库服务（包：disc#t/Services/database.dart:19:34）
颤振：#4 MyApp.build。（包装：圆盘/主。省道：37:32）
颤振：#5 Consumer.buildWithChild（包：provider/src/Consumer.dart:175:19）
flatter:#6 SingleChildStatelessWidget.build（包：嵌套/嵌套.dart:260:41）
flatter:#7无状态元素.build（包：flatter/src/widgets/framework.dart:4620:28）
颤振：#8 SingleChildStatelement.build（包：嵌套/嵌套。dart:280:18）
flatter:#9 ComponentElement.performRebuild（包：flatter/src/widgets/framework.dart:4546:15）
flatter:#10 Element.rebuild（包：flatter/src/widgets/framework.dart:4262:5）
flatter:#11 ComponentElement._firstBuild（包：flatter/src/widgets/framework.dart:4525:5）
flatter:#12 ComponentElement.mount（包：flatter/src/widgets/framework.dart:4520:5）
颤振：#13 SingleChildWidgetElementMixin.mount（包：嵌套/嵌套。dart:223:11）
flatter:#14 Element.inflateWidget（包：flatter/src/widgets/framework.dart:3490:14）
flatter:#15 Element.updateChild（包：flatter/src/widgets/framework.dart:3258:18）
flatter:#16 ComponentElement.performRebuild（包：flatter/src/widgets/framework.dart:4571:16）
颤振：#17_InheritedProviderScopeElement.performRebuild（包：provider/src/inherited_provider.dart:426:11）
flatter:#18 Element.rebuild（包：flatter/src/widgets/framework.dart:4262:5）
flatter:#19 ComponentElement._firstBuild（包：flatter/src/widgets/framework.dart:4525:5）
flatter:#20 ComponentElement.mount（包：flatter/src/widgets/framework.dart:4520:5）
颤振：。。。正常元件安装（7个机架）
颤振：#27 SingleChildWidgetElementMixin.mount（包：嵌套/嵌套。dart:223:11）
颤振：。。。正常元件安装（7个机架）
flatter:#34 Element.inflateWidget（包：flatter/src/widgets/framework.dart:3490:14）
flatter:#35 Element.updateChild（包：flatter/src/widgets/framework.dart:3258:18）
flatter:#36 RenderObjectToWidgetElement._重建（包：flatter/src/widgets/binding.dart:1174:16）
flatter:#37 RenderObjectToWidgetElement.mount（包：flatter/src/widgets/binding.dart:1145:5）
颤振：#38 RenderObjectToWidgetAdapter.attachToRenderTree。（软件包：flatter/src/widgets/binding.dart:1087:17）
flatter:#39 BuildOwner.buildScope（包：flatter/src/widgets/framework.dart:2620:19）
flatter:#40 RenderObjectToWidgetAdapter.attachToRenderTree（包：flatter/src/widgets/binding.dart:1086:13）
flatter:#41 WidgetsBinding.attachRootWidget（包：flatter/src/widgets/binding.dart:927:7）
颤振：#42 widgetsbind.scheduleAttachRootWidget。（包：flatter/src/widgets/binding.dart:908:7）
颤振：（从类断言错误、类RawReceivePortImpl、类计时器、dart:async和dart:async补丁中删除了13帧）
颤振：