Typescript模块没有导出的成员 - 反应

Question

我正在研究react,redux Typescript应用程序.我有一个奇怪的情况,经过一些更改后,其中一个模块已停止导出其成员.

文件夹结构是:

src
|---- components
|---- containers

'components'文件夹具有.tsx文件,而包装.ts文件位于'containers'文件夹中.

下面列出了NodeList.tsx模块:

import * as React from "react";

export const NodeList = (props) => (
    <div id="NodeList">
        <ul>
        {props.items.map((item, i) => (
            <li key={i} >
                <span id={"Item_"+i}>{item}</span>
            </li>
            )
        )}
        </ul>
    </div>
    )

包装容器NodeListContainer是:

import { connect } from "react-redux";
import { Provider } from "react-redux";

import { Nodelist } from "../components/NodeList"

const nodesAsArrayOfType = (state, nodeType: string) => {
    console.log("Going for nodes of type ", nodeType)
    let a = state.data.model.nodes
    let k = Object.keys(a);
    let sub = k.filter((e) => {
                   return a[e].nodeType == nodeType
        }).map((e) => a[e])
    console.log("Got nodes ", sub)    
    return sub
}

const mapStateToProps = (state) => {
    var list = nodesAsArrayOfType(state, state.UIstate.focusNodeType).map((e) => {return JSON.stringify(e)})
    console.log("Returning ", list, list.length)
    return {
        items: list
    }
}

const mapDispatchToProps = (dispatch) => {
    return {
        newTextValue: (e) => {dispatch({type: "ON_CHANGE", text: e.target.value})}
    }
}

export const NodeListContainer = connect(
    mapStateToProps,
    mapDispatchToProps
    )(NodeList)

上面的NodeList导入正在标记错误消息

ERROR in ./src/containers/NodeListContainer.ts
(4,10): error TS2305: Module '"MyProject/src/components/NodeList"' has no exported member 'Nodelist'.

任何人都可以提供任何洞察可能发生的事情吗？

Answer 1

如果你修正了错字,你的代码应该有效.

代替

import { Nodelist } from "../components/NodeList"

你应该写:

import { NodeList } from "../components/NodeList"
//           ^ capital L

Answer 2

如果有人仍然遇到这个问题，我发现我只从文件中导出一项，因此进行更改

export default function App() {
   ...
};

到

export function App() {
   ...
}

似乎成功了！