Usage with createStore preloadedState parameter?

Hi, I have the following code in my app.js reducer:

const defaultState = {
  count: 1,
  type: null,
}

...

export default handleActions(reducerMap, defaultState)

And I am trying to preload the type state when creating the store:

const preloadedState = {
  app: {
    type: "apple",
  },
}
const store = createStore(reducers, preloadedState, applyMiddleware(thunkMiddleware))

But I got the error that count state became undefined, Seems by using redux-actions I was unable to check and assign state into defaultState

[yangmillstheory]

[nodegin]

@yangmillstheory I see, thanks for helping!