Flutter 库“package:firebase_core/firebase_core.dart”不会导出显示名称为“FirebaseOptions”的成员

Question

我刚刚将 Flutter 升级到了最新版本（3.22.2），从那时起，我在配置 Firebase 项目时不断在 Firebase 提供的 firebase_options.dart 文件中收到此错误：

The library 'package:firebase_core/firebase_core.dart' doesn't export a member with the shown name 'FirebaseOptions'.

在文件中的这一行：

import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;

我尝试恢复旧的 Flutter 版本并重新安装，但仍然遇到问题。

我还尝试使用新的 Firebase 项目为 Web 应用程序创建一个新的 Flutter 项目，但仍然遇到相同的错误。

这是我尝试运行应用程序时遇到的错误

Error (Xcode): ../../../.pub-cache/hosted/pub.dev/firebase_core-3.2.0/lib/firebase_core.dart:8:8: Error: Error when reading '../../../.pub-cache/hosted/pub.dev/firebase_core_platform_interface-5.1.0/lib/firebase_core_platform_interface.dart': Permission denied
Could not build the application for the simulator.
Error launching application on iPhone 15 Pro Max.

以防万一，这里是 firebase_options.dart 代码：

// File generated by FlutterFire CLI.
// ignore_for_file: type=lint
import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
import 'package:flutter/foundation.dart'
    show defaultTargetPlatform, kIsWeb, TargetPlatform;

/// Default [FirebaseOptions] for use with your Firebase apps.
///
/// Example:
/// ```dart
/// import 'firebase_options.dart';
/// // ...
/// await Firebase.initializeApp(
///   options: DefaultFirebaseOptions.currentPlatform,
/// );
/// ```
class DefaultFirebaseOptions {
  static FirebaseOptions get currentPlatform {
    if (kIsWeb) {
      throw UnsupportedError(
        'DefaultFirebaseOptions have not been configured for web - '
        'you can reconfigure this by running the FlutterFire CLI again.',
      );
    }
    switch (defaultTargetPlatform) {
      case TargetPlatform.android:
        return android;
      case TargetPlatform.iOS:
        return ios;
      case TargetPlatform.macOS:
        throw UnsupportedError(
          'DefaultFirebaseOptions have not been configured for macos - '
          'you can reconfigure this by running the FlutterFire CLI again.',
        );
      case TargetPlatform.windows:
        throw UnsupportedError(
          'DefaultFirebaseOptions have not been configured for windows - '
          'you can reconfigure this by running the FlutterFire CLI again.',
        );
      case TargetPlatform.linux:
        throw UnsupportedError(
          'DefaultFirebaseOptions have not been configured for linux - '
          'you can reconfigure this by running the FlutterFire CLI again.',
        );
      default:
        throw UnsupportedError(
          'DefaultFirebaseOptions are not supported for this platform.',
        );
    }
  }
...

抱歉，如果我的英语不好，我是法国人

Answer 1

确保您的 firebase_core 软件包是最新版本。

在 IDE 的终端中运行这些命令：

flutter pub outdated

那么，

flutter pub upgrade