Create-React-App 依赖错误

Question

根据npm错误提示，问题是 React 18.0.0 被引入至CRA导致依赖冲突，手动改 package.json 降级到 React 17 还是会挂。具体什么问题已经无法排查出来了，一个CRA包了太多东西。
然后拉到 GitHub 仓库里最早的一版课程代码全部拉到本地 npm i 还是依赖出错。因为没有 package-lock.json 所以肯定版本号没固定，然后我用 yarn install，能无错误安装了，但是 yarn start 还是报错。
下面是 yarn start 的报错信息：

node:internal/modules/cjs/loader:488
      throw e;
      ^

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/tokenize' is not defined by "exports" in /Users/.../jira-clone/node_modules/postcss-safe-parser/node_modules/postcss/package.json
    at new NodeError (node:internal/errors:372:5)
    at throwExportsNotFound (node:internal/modules/esm/resolve:448:9)
    at packageExportsResolve (node:internal/modules/esm/resolve:727:3)
    at resolveExports (node:internal/modules/cjs/loader:482:36)
    at Function.Module._findPath (node:internal/modules/cjs/loader:522:31)
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:919:27)
    at Function.Module._load (node:internal/modules/cjs/loader:778:27)
    at Module.require (node:internal/modules/cjs/loader:999:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (/Users/.../jira-clone/node_modules/postcss-safe-parser/lib/safe-parser.js:1:17) {
  code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'
}

希望老师能尽快更新一下环境搭建的教程，否则根本没法学，已经折腾了一整天了。

Answer 1

Nolan 2022-04-12 23:43:25

再拉一下代码吧，我添加了 yarn.lock 文件；删除掉依赖再重新安装

• 提问者 Spaghetti666 #1

  老师没事了，Facebook已经修好了 create-react-app
  https://github.com/facebook/create-react-app/issues/12278