TypeError：redux__WEBPACK_IMPORTED_MODULE_0__不是一个函数

Question

I'm getting this strange error message when trying to run my React app. The index.js of my reducers is below, and export default combineReducers({ is the specific line that seems to be causing it.

import * as combineReducers from 'redux';
import * as userReducers from './userReducers';
import * as articleReducers from './articleReducers';

export default combineReducers({
    userReducers,
    articleReducers
});