为什么刷新页面时我的Redux存储区是空的

Question

我得到这个错误store.getState is not a function

当我尝试为我的reactjs项目设置redux存储时 这是我的商店代码：

import { persistStore, persistReducer } from 'redux-persist';
import createSagaMiddleware from 'redux-saga';
import rootSaga from './sagas';
const sagaMiddlewares = createSagaMiddleware();
const middlewares = [sagaMiddlewares];
export default () => new Promise((resolve) => {
    const enhancer = [applyMiddleware(...middlewares)];
    window.devToolsExtension && enhancer.push(window.devToolsExtension());

    const store = createStore(
        persistReducer,
        undefined,
        compose(...enhancer)
    );
    sagaMiddlewares.run(rootSaga);
    store.subscribe(() => console.log('redux store: ', store.getState()));
    persistStore(store, null, () => {
        resolve(store);
    });
});

我的index.js：

 ...
        import registerServiceWorker from './registerServiceWorker';
        import { Provider } from 'react-redux';
        import store from './store';

        const app = (
            <Provider store={store}>
                <BrowserRouter>
                    <App />
                </BrowserRouter>
            </Provider>
        );

        ReactDOM.render(app, document.getElementById('root'));
        registerServiceWorker();

如果我通过设置persistStore删除了商店中的Promise，它会运行，但是刷新商店时该商店为空 在我的减速器中： 我使用来自'redux-persist / lib / storage'的存储；并设置我的配置：

const config = {
  key: 'root',
  timeout: 30000,
  storage: storage,
  whitelist: ['token', 'me'],
  blacklist: ['form']
};