无法编译反应应用程序，因为它显示“未找到模块” [英] Unable to compile react application as it says "Module not found"

问题描述

我一直在尝试执行一个非常简单的反应应用程序，但由于某种原因我无法编译它。当我尝试使用npm start在bash中编译它时，我收到错误，指出编译失败：./ src / index.js
模块未找到：无法解析'./registerServiceWorker'in' / Users / Pruthvi / Desktop / ReactApplication / my-app / src'

I have been trying to execute a very simple react application, but for some reason I'm unable to compile it. When i try to compile it in bash using "npm start", i get the error stating "Failed to compile: ./src/index.js Module not found: Can't resolve './registerServiceWorker' in '/Users/Pruthvi/Desktop/ReactApplication/my-app/src'"

任何人都可以帮助我，因为我是新蜜蜂应对应用程序！

can anybody help me as I am a new bee to react application!

推荐答案

默认情况下， create-react-app 将创建一个渐进的Web应用程序，如文档 here 。渐进式Web应用程序依赖 registerServiceWorker.js 文件中的 registerServiceWorker（）。您显然删除了此文件，因此您的项目不再构建。

By default, create-react-app will create a progressive web app, as documented here. The progressive web app relies on registerServiceWorker() in the registerServiceWorker.js file. You have apparently deleted this file, so your project no longer builds.

您有两种选择：

1. 将您的项目保持为渐进式网络应用程序，在这种情况下，您应该只是恢复首次创建后的原始状态。


2. 选择退出渐进式网络应用程序功能。

要退出渐进式网页应用功能，您需要修改 src / index .js 文件如下：

In order to opt out of the progressive web app features, you need to modify your src/index.js file as follows:

1. 删除 import registerServiceWorker 。


2. 删除 registerServiceWorker（）调用。

1. Delete the import of the registerServiceWorker.
2. Delete the registerServiceWorker() call.

您的 src / index.js 将如下所示：

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
// Deleted -- import registerServiceWorker from './registerServiceWorker';

ReactDOM.render(<App />, document.getElementById('root'));
// Deleted -- registerServiceWorker();

一旦你对 index.js进行了修改，您可以安全地删除 registerServiceWorker.js 文件（根据您发布的错误消息，您已经完成了该文件）。

Once you've made those modifications to your index.js, you can safely delete the registerServiceWorker.js file (which it appears you've already done based on the error message you've posted).

该文档提供了对如何选择退出和一些拥有渐进式Web应用程序的后果。

The documentation gives a more complete description of how to opt out and some of the consequences of having a progressive web app.

这篇关于无法编译反应应用程序，因为它显示“未找到模块”的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！