You must pass a component to the function returned by connect. Instead received undefined

Question

The code below gives

Uncaught Error: You must pass a component to the function returned by connect. Instead received undefined

List.js

import React from 'react'; import { connect, bindActionCreators } from 'react-redux'; import PostList from '../components/PostList'; // Component I wish to wrap with actions and state import postList from '../Actions/PostList' //Action Creator defined by me  const mapStateToProps = (state, ownProps) => {     return state.postsList }  const mapDispatchToProps = (dispatch) => {     return bindActionCreators({"postsList":postList},dispatch) }  export default connect(mapStateToProps, mapDispatchToProps)(PostList); 

PostList.js

import React from 'react'  export const PostList = (props) => {     return <div>List</div> } 

Please help me with a solution?

Answer 1

You are doing import PostList from '../components/PostList'; so you need to use export default in your PostList.js file.

Otherwise you need to do import { PostList } from '../components/PostList';.

To whoever is interested, here is a nice article about es6 import/export syntax: http://www.2ality.com/2014/09/es6-modules-final.html

Answer 2

Not related to the asker specifically, but if you're facing this error, it's worth to check if you have the connect() syntax right:

const PreloadConnect = connect(mapStateToProps, {})(Preload);  export default PreloadConnect; 

Note that Preload, is passed as a IIFE parameter.