javascript - Redux存储没有有效的Reducer，但带有CombineReducers和有效的Reducer

import { createStore, combineReducers } from 'redux'
const reducer = (state = {}, action) => state
const rootReducer = combineReducers(reducer)
let store = createStore(rootReducer)
export default store

创建商店时会触发警告：

Store does not have a valid reducer. Make sure the argument passed to combineReducers is an object whose values are reducers.

当我尝试使用任何存储方法时，都会再次出现此警告。

最佳答案

错误很简单-您没有将对象传递给CombineReducers：

const rootReducer = combineReducers({ reducer })

这样可以解决问题。