这个问题我已经研究了将近半天了。我尝试使用Flutter的SharedPreferences包在应用存储中存储键/值。当我通过await SharedPreferences.getInstance()新建一个SharedPreferences时，它可以正常构建和运行，但是当应用到达那行代码时，它崩溃了，并出现以下错误：
MissingPluginException (MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/shared_preferences))
我已经找到了其他Stackoverflow职位，但他们并没有帮助解决这个问题：

• MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/shared_preferences) while getting FCM in background
• Unhandled Exception: MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/ for many packages on Flutter
• Flutter Test: MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/shared_preferences)
• Flutter MissingPluginException(No implementation found for method getAll on channel ...) in release app
• Unhandled Exception: MissingPluginException(No implementation found for method flutterToWatch on channel it.example.watch)
• Flutter: Unhandled exception: MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/shared_preferences)
• https://github.com/flutter/flutter/issues/98473

通过所有这些，我尝试了以下几点：

• flutter pub get
• io.flutter.plugins.sharedpreferences.SharedPreferencesPlugin.registerWith(registry.registrarFor("io.flutter.plugins.sharedpreferences.SharedPreferencesPlugin"));
• 由于我使用的是iOS：SharedPreferencesIOS.registerWith();
• https://pub.dev/packages/flutter_isolate
• flutter clean && flutter pub get
• SharedPreferences.setMockInitialValues({});

在运行/完成上述步骤后，我重新启动了我的编辑器（VSC）。我甚至安装了带有Flutter扩展的Android Studio并试用了它，但它不起作用。我尝试从命令行运行，但它仍然返回相同的错误。我尝试重新启动我的计算机并卸载和重新安装flutter和dart以获得笑声。我真的不知道在这一点上该怎么做。我错过了哪些步骤？