Flutter：找不到providerinstaller的本地模块描述符类

Question

我一直在尝试开发一个与 firebase 一起使用的应用程序，但我不是编码专业人士。

实际上，我的应用程序在模拟器上运行良好，但 3-5 秒后我收到一条错误消息，如下所示：

W/DynamiteModule(11855): Local module descriptor class for providerinstaller not found.
I/DynamiteModule(11855): Considering local module providerinstaller:0 and remote module providerinstaller:0
W/ProviderInstaller(11855): Failed to load providerinstaller module: No acceptable module found. Local version is 0 and remote version is 0.
W/DynamiteModule(11855): Local module descriptor class for providerinstaller not found.
I/DynamiteModule(11855): Considering local module providerinstaller:0 and remote module providerinstaller:0
W/ProviderInstaller(11855): Failed to load providerinstaller module: No acceptable module found. Local version is 0 and remote version is 0.

您可以在下面看到我的依赖项：

依赖项：

  flutter:
    sdk: flutter
  cloud_firestore: ^0.14.0+2
  image: ^2.0.7
  animator: 0.1.4
  image_picker: ^0.6.7+7
  google_sign_in: ^4.5.3
  timeago: 2.0.17
  cached_network_image:
  firebase_auth: ^0.18.0+1
  geolocator: 5.0.1
  uuid: ^2.0.0
  cupertino_icons: ^0.1.2
  path_provider: ^1.6.16
  firebase_messaging: ^7.0.0
  firebase_storage: ^4.0.0
  firebase_core: ^0.5.0
  flutter_svg: ^0.19.0

除了上面的providerinstaller问题之外，当我尝试使用相机上传图像时，我还收到以下附加错误：

E/flutter (11855): [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: NoSuchMethodError: The getter 'path' was called on null.
E/flutter (11855): Receiver: null
E/flutter (11855): Tried calling: path
E/flutter (11855): #0      Object.noSuchMethod (dart:core-patch/object_patch.dart:51:5)
E/flutter (11855): #1      _UploadPageState.pickImageFromGallery (package:buddiesgram/pages/UploadPage.dart:37:38)
E/flutter (11855): <asynchronous suspension>
E/flutter (11855): #2      _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:992:19)
E/flutter (11855): #3      _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:1098:38)
E/flutter (11855): #4      GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:184:24)
E/flutter (11855): #5      TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:524:11)
E/flutter (11855): #6      BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:284:5)
E/flutter (11855): #7      BaseTapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:219:7)
E/flutter (11855): #8      PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:477:9)
E/flutter (11855): #9      PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:78:12)
E/flutter (11855): #10     PointerRouter._dispatchEventToRoutes.<anonymous closure> (package:flutter/src/gestures/pointer_router.dart:124:9)
E/flutter (11855): #11     _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:377:8)
E/flutter (11855): #12     PointerRouter._dispatchEventToRoutes (package:flutter/src/gestures/pointer_router.dart:122:18)
E/flutter (11855): #13     PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:108:7)
E/flutter (11855): #14     GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:220:19)
E/flutter (11855): #15     GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:200:22)
E/flutter (11855): #16     GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:158:7)
E/flutter (11855): #17     GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:104:7)
E/flutter (11855): #18     GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:88:7)
E/flutter (11855): #19     _rootRunUnary (dart:async/zone.dart:1206:13)
E/flutter (11855): #20     _CustomZone.runUnary (dart:async/zone.dart:1100:19)
E/flutter (11855): #21     _CustomZone.runUnaryGuarded (dart:async/zone.dart:1005:7)
E/flutter (11855): #22     _invoke1 (dart:ui/hooks.dart:267:10)
E/flutter (11855): #23     _dispatchPointerDataPacket (dart:ui/hooks.dart:176:5)
E/flutter (11855): 

您可以在下面看到我的上传页面的代码：

import 'dart:io';
import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';

class UploadPage extends StatefulWidget {
  @override
  _UploadPageState createState() => _UploadPageState();
}

class _UploadPageState extends State<UploadPage> {

  PickedFile file;

  captureImageWithCamera() async {
    Navigator.pop(context);
    final picker = ImagePicker();
    PickedFile imageFile = await picker.getImage(
      source: ImageSource.camera,
      maxHeight: 680,
      maxWidth: 970,
    );
    imageFile = PickedFile(imageFile.path);
    setState(() {
      this.file = imageFile;
    });
  }

  pickImageFromGallery() async {

    Navigator.pop(context);
    final picker = ImagePicker();
    PickedFile imageFile = await picker.getImage(
      source: ImageSource.gallery,
      maxHeight: 680,
      maxWidth: 970,
    );
    imageFile = PickedFile(imageFile.path);
    setState(() {
      this.file = imageFile;
    });
  }

  takeImage(mContext){
    return showDialog(
        context: mContext,
        builder: (context){
          return SimpleDialog(
            title: Text("New Post", style: TextStyle(color: Colors.white, fontWeight: FontWeight.bold),),
            children: [
              SimpleDialogOption(
                child: Text("Capture image with camera", style: TextStyle(color: Colors.white),),
                onPressed: captureImageWithCamera,
              ),
              SimpleDialogOption(
                child: Text("Select image from gallery", style: TextStyle(color: Colors.white),),
                onPressed: pickImageFromGallery,
              ),
              SimpleDialogOption(
                child: Text("Cancel", style: TextStyle(color: Colors.white),),
                onPressed: () => Navigator.pop(context),
              ),

            ],
          );
        }
    );
  }

  displayUploadScreen(){
    return Container(
      color: Theme.of(context).accentColor.withOpacity(0.5),
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(Icons.add_a_photo, color: Colors.grey,size: 200.0,),
          Padding(
            padding: EdgeInsets.only(top: 20.0),
            child: RaisedButton(
              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(9.0),),
              child: Text("Upload Image", style: TextStyle(color: Colors.white, fontSize: 20.0),),
              color: Colors.green,
              onPressed: () => takeImage(context),
            ),
          ),
        ],
      ),
    );
  }


  @override
  Widget build(BuildContext context) {
    return displayUploadScreen();
  }
}

如果您想查看我的代码或其他文件，我想与您分享。你能指导一下吗？

先感谢您。

问候，艾金。

Answer 1

我不知道您在哪里访问了 firestore 包，但就我而言，我试图更新数据，但实际上我正在删除并创建一个新的包，该包没有我需要在代码中访问的数据。因此，我唯一的建议是确保您不会意外删除数据或尝试访问您没有或不会因某种未知原因而不会拥有的数据，进入您的 firestore 数据库并确保您的数据符合您的要求。我看到答案说你需要在模拟器中更新你的谷歌服务，所以也许这可能是你的情况，但它不是我的，如果你在设置中转到你的谷歌播放服务应用程序并看到停用，这意味着你的模拟器已经更新，而且它会说更新你的谷歌播放服务。