Cannot find module @babel\types\lib\index.js after browserlist update

Question

Seemingly out of nowhere, our React app (using Create React App) cannot be built anymore. It fails to load a Babel module:

$ yarn build
yarn run v1.22.19
$ react-scripts build
node:internal/modules/cjs/loader:371
      throw err;
      ^

Error: Cannot find module 'C:\dev\node_modules\@babel\types\lib\index.js'. Please verify that the package.json has a valid "main" entry
    at tryPackage (node:internal/modules/cjs/loader:363:19)
    at Module._findPath (node:internal/modules/cjs/loader:576:18)
    at Module._resolveFilename (node:internal/modules/cjs/loader:941:27)
    at Module._load (node:internal/modules/cjs/loader:803:27)
    at Module.require (node:internal/modules/cjs/loader:1021:19)
    at require (node:internal/modules/cjs/helpers:103:18)
    at Object.<anonymous> (C:\dev\node_modules\@babel\helper-module-imports\lib\import-injector.js:10:9)
    at Module._compile (node:internal/modules/cjs/loader:1119:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1173:10)
    at Module.load (node:internal/modules/cjs/loader:997:32) {
  code: 'MODULE_NOT_FOUND',
  path: 'C:\\dev\\node_modules\\@babel\\types\\package.json',
  requestPath: '@babel/types'
}

Indeed, after yarn install, there is no lib folder inside node_modules\@babel\types\.

The potentially relevant parts of the package.json:

{
  // ...
  "dependencies": {
    "@babel/runtime": "~7.15.3",
    "core-js": "~3.16.2",
    "platform": "~1.3.6",
    "prop-types": "~15.7.2",
    "react": "~17.0.2",
    "react-app-polyfill": "2.0.0",
    "react-dom": "~17.0.2",
    "regenerator-runtime": "~0.13.9"
     // ...
  },
  "devDependencies": {
    "react-scripts": "4.0.3",
    "typescript": "4.3.5"
    // ...
  },
  "scripts": {
    "build": "react-scripts build"
    // ...
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

My current environment is:

• Windows 10 Pro 19043.1889
• Node.js 18.8.0
• yarn 1.22.19

An update to @babel/runtime@7.18.9 did not help.

I think the action that may have broken the build on my machine is npx browserslist@latest --update-db, which I was requested to run by a previous build. I do not see the connection though.

After the problem occured, I tried multiple things, so I am not sure in exactly which environment things still worked. It must have been:

• Node.js 16.x.x
• yarn >= 1.21.1

Any ideas?

Answer 1

I don't know what was going on, but after cleaning the machine's yarn cache, the build works again. It can be cleaned by running yarn cache clean or by manually deleting the folder C:\Users\<user>\AppData\Local\Yarn\Cache.

Curiously, when trying to reproduce the problem by running npx browserslist@latest --update-db again, I now experience this command doing nothing.