当我用这个包运行程序时出现包contacts_service问题

Question

我正在尝试使用contacts_service包：^0.6.3 我只是将其放入 pubspec.yaml 中，到目前为止，一切都很顺利，但是当我编译时，我每次都会收到此错误。

FAILURE: Build failed with an exception.

* What went wrong:
  A problem occurred configuring project ':contacts_service'.

> Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl.
> Namespace not specified. Specify a namespace in the module's build file. See https://d.android.com/r/tools/upgrade-assistant/set-namespace for information about setting the namespace.

     If you've specified the package attribute in the source AndroidManifest.xml, you can use the AGP Upgrade Assistant to migrate to the namespace value in the build file. Refer to https://d.android.com/r/tools/upgrade-assistant/agp-upgrade-assistant for general information about using the AGP Upgrade Assistant.

来源：

import 'package:flutter/material.dart';
import 'package:contacts_service/contacts_service.dart';
import 'package:permission_handler/permission_handler.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: ContactListPage(),
    );
  }
}

class ContactListPage extends StatefulWidget {
  @override
  _ContactListPageState createState() => _ContactListPageState();
}

class _ContactListPageState extends State<ContactListPage> {

  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter Contact List'),
      ),

    );
  }
}`

Answer 1

我也有这个问题。 你找到解决这个问题的方法了吗