Question

我正在尝试在Flutter中制作一个后台位置跟踪应用程序。因此，我为运行后台服务创建了一个隔离。如果我将位置数据存储在本地文件系统中，其效果很好。但是当我连接Firebase从隔离发送数据时，会出现以下错误：


E/flutter (10142): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: MissingPluginException(No implementation found for method DocumentReference#setData on channel plugins.flutter.io/cloud_firestore)
E/flutter (10142): #0      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:154:7)
E/flutter (10142): <asynchronous suspension>
E/flutter (10142): #1      MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:329:12)
E/flutter (10142): #2      MethodChannelDocumentReference.setData (package:cloud_firestore_platform_interface/src/method_channel/method_channel_document_reference.dart:28:43)
E/flutter (10142): #3      DocumentReference.setData (package:cloud_firestore/src/document_reference.dart:48:22)
E/flutter (10142): #4      LocationServiceRepository.callback (package:alertcat/backLocation/location_service_repository.dart:61:15)
E/flutter (10142): #5      LocationCallbackHandler.callback (package:alertcat/backLocation/location_callback_handler.dart:23:40)
E/flutter (10142): #6      callbackDispatcher.<anonymous closure> (package:background_locator/callback_dispatcher.dart:22:15)
E/flutter (10142): #7      MethodChannel._handleAsMethodCall (package:flutter/src/services/platform_channel.dart:409:55)
E/flutter (10142): #8      MethodChannel.setMethodCallHandler.<anonymous closure> (package:flutter/src/services/platform_channel.dart:377:54)
E/flutter (10142): #9      _DefaultBinaryMessenger.handlePlatformMessage (package:flutter/src/services/binding.dart:199:33)
E/flutter (10142): #10     _invoke3.<anonymous closure> (dart:ui/hooks.dart:290:15)
E/flutter (10142): #11     _rootRun (dart:async/zone.dart:1184:13)
E/flutter (10142): #12     _CustomZone.run (dart:async/zone.dart:1077:19)
E/flutter (10142): #13     _CustomZone.runGuarded (dart:async/zone.dart:979:7)
E/flutter (10142): #14     _invoke3 (dart:ui/hooks.dart:289:10)
E/flutter (10142): #15     _dispatchPlatformMessage (dart:ui/hooks.dart:164:5)

但是Firebase从隔离区外部正常运行。我该怎么办才能解决这个问题？

Answer 1

确保您使用的是最新的cloud_firestore版本。然后执行：

flutter clean
flutter packages get

从模拟器/电话中删除该应用，关闭ide，然后再次打开。

Answer 2

主要问题是内部依赖，还有另一个第三方包与 firestore 包有冲突，

为了解决这个问题，我为另一个包编写了本机代码，现在它工作正常

MissingPluginException（未找到方法DocumentReference的实现）从扑扑隔离向Firestore发送数据

2 个答案: