我正在学习Flutter中的hivedb:-当我使用Flutter包pub run buil\u runner build命令时，它会生成data.g.dart文件，它有一个错误，请修复它。
完整的error:- {“resource”：“/e:/mywork/androidapps/hive\u todo/lib/data.g.dart”，“owner”：“dart”，“code”：“non\u abstract\u class\u inherits\u abstract\u member”，“severity”：8，“message”：“getter typeadapter.typeid”缺少具体实现。\n请尝试实现缺少的方法，或使类抽象。”，“source”：“dart”，“startInNumber”：9，“startcolumn”：7，“endlinenumber”：9，“endcolumn”：18，“tags”：[]}

**the data.g.dart code:-**

    // GENERATED CODE - DO NOT MODIFY BY HAND

    part of 'data.dart';

    //**************************************************************************
    // TypeAdapterGenerator
    //**************************************************************************

    class dataAdapter extends TypeAdapter<data> {
      @override
      data read(BinaryReader reader) {
        var numOfFields = reader.readByte();
        var fields = <int, dynamic>{
          for (var i = 0; i < numOfFields; i++) reader.readByte(): reader.read(),
        };
        return data(
          todo: fields[0] as String,
          val: fields[1] as int,
        );
      }

      @override
      void write(BinaryWriter writer, data obj) {
        writer
          ..writeByte(2)
          ..writeByte(0)
          ..write(obj.todo)
          ..writeByte(1)
          ..write(obj.val);
      }

    }

data.dart代码

import 'package:hive/hive.dart';

part 'data.g.dart';

@HiveType()
class data {

@HiveField(0)
  final String todo;
@HiveField(1)
  final int val;

  data({this.todo,this.val});
}

主要方法代码

import 'package:flutter/material.dart';
import 'package:hive/hive.dart';
import 'package:path_provider/path_provider.dart' as path_provider;

import 'data.dart';
import 'todo_page.dart';

void main() async {

  WidgetsFlutterBinding.ensureInitialized();
  final appDocumentDir = await path_provider.getApplicationDocumentsDirectory();
  Hive.init(appDocumentDir.path);
Hive.registerAdapter(dataAdapter());
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override

  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Hive Todo',
      home: FutureBuilder(
        future: Hive.openBox('data'),
        builder: (context, snapshot) {
          if (snapshot.connectionState == ConnectionState.done) {
            if (snapshot.hasError)
              return Text(snapshot.error.toString());
            else
              return Todo_Page();
          }
          // Although opening a Box takes a very short time,
          // we still need to return something before the Future completes.
          else
            return Scaffold(backgroundColor: Colors.red);
        },
      ),
    );

  }

  @override
  void dispose() {
    Hive.close();
    super.dispose();
  }
}

如果我做了快速修复，那么错误就消失了，但是当我在main方法中注册适配器时 Hive.registerAdapter(dataAdapter(), 0); 当我删除它时，它只会因为typeid而出错， Hive.registerAdapter(dataAdapter()); 那么它就不会出错
但我想要里面的typeid。
我的出版物

name: hive_todo
description: A new Flutter project.

# The following defines the version and build number for your application.

# A version number is three numbers separated by dots, like 1.2.43

# followed by an optional build number separated by a +.

# Both the version and the builder number may be overridden in flutter

# build by specifying --build-name and --build-number, respectively.

# In Android, build-name is used as versionName while build-number used as versionCode.

# Read more about Android versioning at https://developer.android.com/studio/publish/versioning

# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.

# Read more about iOS versioning at

# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html

version: 1.0.0+1

environment:
  sdk: ">=2.5.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter
  hive: ^1.2.0
  hive_flutter: ^0.2.1
  # For OS-specific directory paths
  path_provider: ^1.3.1

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2

dev_dependencies:
  flutter_test:
    sdk: flutter
  hive_generator: ^0.5.1
  build_runner:

# For information on the generic Dart part of this file, see the

# following page: https://dart.dev/tools/pub/pubspec

# The following section is specific to Flutter.

flutter:

  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true

  # To add assets to your application, add an assets section, like this:
  # assets:
  #  - images/a_dot_burr.jpeg
  #  - images/a_dot_ham.jpeg

  # An image asset can refer to one or more resolution-specific "variants", see
  # https://flutter.dev/assets-and-images/#resolution-aware.

  # For details regarding adding assets from package dependencies, see
  # https://flutter.dev/assets-and-images/#from-packages

  # To add custom fonts to your application, add a fonts section here,
  # in this "flutter" section. Each entry in this list should have a
  # "family" key with the font family name, and a "fonts" key with a
  # list giving the asset and other descriptors for the font. For
  # example:
  # fonts:
  #   - family: Schyler
  #     fonts:
  #       - asset: fonts/Schyler-Regular.ttf
  #       - asset: fonts/Schyler-Italic.ttf
  #         style: italic
  #   - family: Trajan Pro
  #     fonts:
  #       - asset: fonts/TrajanPro.ttf
  #       - asset: fonts/TrajanPro_Bold.ttf
  #         weight: 700
  #
  # For details regarding fonts from package dependencies,
  # see https://flutter.dev/custom-fonts/#from-packages

请告诉我如何解决这个问题，并解释我，因为我是初学者。
谢谢你，乌玛·巴洛克。