Error: No StoreProvider<AppState> found. (debug info: Null)

[huoda1237]

The following StoreConnectorError was thrown building StoreConnector<AppState, SignInViewModel>(dirty): Error: No StoreProvider found. (debug info: Null)

To fix, please try:

• Dart 2 (required)
• Wrapping your MaterialApp with the StoreProvider, rather than an individual Route
• Providing full type information to your Store, StoreProvider and StoreConnector<St, Model>
• Ensure you are using consistent and complete imports. E.g. always use `import 'package:my_app/app_state.dart';

The relevant error-causing widget was StoreConnector<AppState, SignInViewModel> lib/…/sign_in/sign_in_connector.dart:13 When the exception was thrown, this was the stack

0 StoreProvider.of

package:async_redux/src/store.dart:766

1 StoreConnector.build

package:async_redux/src/store.dart:950

2 StatelessElement.build

package:flutter/…/widgets/framework.dart:4569

3 ComponentElement.performRebuild

packa

[huoda1237]

你好，我是来自中国的朋友，当我运行这个demo的时候遇到了上面的问题，请帮我分析下是什么原因，谢谢

[marcglasberg]

It's saying it couldn't find a StoreProvider<AppState> in the tree above one of your store connector widgets.

Up in your tree you must have this:

StoreProvider<AppState>(
      store: myStore,
      child: MaterialApp( ...

If you want to get more information from the error message, you can pass the debug: this parameter to all your store connectors. For example:

return StoreConnector<AppState, SignInViewModel>(
     debug: this,

Then, instead of (debug info: Null) you will get the name of the store connector which is failing.