无法使用npm start启动react应用程序的本地开发服务器

我无法使用

npm start

启动本地React开发服务器，几个月前我没有遇到任何问题。我是使用npx create react应用程序安装的。我的错误日志显示如下内容：

> react-scripts start

internal/modules/cjs/loader.js:621
  throw e;
  ^

Error: No valid exports main found for 'C:\Users\dEBA\code\frontend\node_modules\postcss-safe-parser\node_modules\postcss'
    at resolveExportsTarget (internal/modules/cjs/loader.js:618:9)
    at applyExports (internal/modules/cjs/loader.js:499:14)
    at resolveExports (internal/modules/cjs/loader.js:548:12)
    at Function.Module._findPath (internal/modules/cjs/loader.js:650:22)
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:948:27)
    at Function.Module._load (internal/modules/cjs/loader.js:854:27)
    at Module.require (internal/modules/cjs/loader.js:1023:19)
    at require (internal/modules/cjs/helpers.js:72:18)
    at Object.<anonymous> (C:\Users\dEBA\code\frontend\node_modules\postcss-safe-parser\lib\safe-parse.js:1:17)
    at Module._compile (internal/modules/cjs/loader.js:1128:30) {
  code: 'MODULE_NOT_FOUND'
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! frontend@0.1.0 start: `react-scripts start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the frontend@0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dEBA\AppData\Roaming\npm-cache\_logs\2020-11-29T14_58_06_913Z-debug.log

---

这可能是因为您正在使用的节点版本不支持CRA的预构建包

降级react脚本版本或升级节点版本

降级将是不合适的，因此我建议您使用LTS版本，该版本当前最高为>14

注意如下，这将是工作

您需要在上安装Node 8.16.0或Node 10.16.0或更高版本 您的本地开发机器

  "name": "frontend",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.11.6",
    "@testing-library/react": "^11.2.2",
    "@testing-library/user-event": "^12.2.2",
    "react": "^17.0.1",
    "react-dom": "^17.0.1",
    "react-scripts": "4.0.1",
    "web-vitals": "^0.2.4"
  },
  "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"
    ]
  }
}