我无法使用 npm start 运行反应应用程序如何解决此错误？

Posted 2023-02-18

【中文标题】我无法使用 npm start 运行反应应用程序如何解决此错误？

【英文标题】：i can't run react app using npm start how to fix this error?

【发布时间】：2021-08-20 22:33:04

【问题描述】：

Failed to compile

./src/index.js 1:39 模块解析失败：意外令牌 (1:39) 使用这些加载器处理了文件：

./node_modules/@pmmmwh/react-refresh-webpack-plugin/loader/index.js ./node_modules/babel-loader/lib/index.js 您可能需要额外的加载器来处理这些加载器的结果。

$RefreshRuntime$ = require('C:/Users/I'm-cx0140/Desktop/dreact/node_modules/react-refresh/runtime.js'); | $RefreshSetup$(module.id); | 此错误发生在构建期间，无法关闭

我的 package.json

  "name": "myapp",
  "version": "0.1.0",
  "private": true,
  "dependencies": 
    "@testing-library/jest-dom": "^5.13.0",
    "@testing-library/react": "^11.2.7",
    "@testing-library/user-event": "^12.8.3",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-scripts": "4.0.3",
    "web-vitals": "^1.1.2"
  ,
  "scripts": 
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  ,
  "eslintConfig": 
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  ,
  "browserslist": 
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  


    enter code here

  "name": "myapp",
  "version": "0.1.0",
  "private": true,
  "dependencies": 
    "@testing-library/jest-dom": "^5.13.0",
    "@testing-library/react": "^11.2.7",
    "@testing-library/user-event": "^12.8.3",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-scripts": "4.0.3",
    "web-vitals": "^1.1.2"
  ,
  "scripts": 
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  ,
  "eslintConfig": 
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  ,
  "browserslist": 
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  

【问题讨论】：

您介意发布您的 Babel 配置吗？或者这是一个 create-react-app 应用程序？如果没有，您可能需要配置 @babel/preset-react 和 @babel/preset-env。

请添加您的配置文件。像 package.json、babel config、

我只有 package.json 而不是 babel 配置

【参考方案1】：

您的用户名（I'm-cx0140）中的 ' 字符可能会触发此问题，请在另一个文件夹中创建您的项目。