javascript - Yarn start not working | error `ERR_PACKAGE_PATH_NOT_EXPORTED' - Stack Overflow

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I have been trying to make this React App, but when I try to do yarn start it shows the following error message:

yarn run v1.22.17
$ react-scripts start
node:internal/modules/cjs/loader:488
      throw e;
      ^

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/tokenize' is not defined by "exports" in /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/postcss-safe-parser/node_modules/postcss/package.json
    at new NodeError (node:internal/errors:371:5)
    at throwExportsNotFound (node:internal/modules/esm/resolve:429:9)
    at packageExportsResolve (node:internal/modules/esm/resolve:683:3)
    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> (/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/postcss-safe-parser/lib/safe-parser.js:1:17) {
  code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'
}

Node.js v17.2.0
error Command failed with exit code 1.
info Visit  for documentation about this mand.

How do I fix this?

This is what it shows now:

Starting the development server...

/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/react-scripts/scripts/start.js:19
  throw err;
  ^

Error: error:0308010C:digital envelope routines::unsupported
    at new Hash (node:internal/crypto/hash:67:19)
    at Object.createHash (node:crypto:130:10)
    at module.exports (/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/webpack/lib/util/createHash.js:135:53)
    at NormalModule._initBuildHash (/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/webpack/lib/NormalModule.js:417:16)
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/webpack/lib/NormalModule.js:452:10
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/webpack/lib/NormalModule.js:323:13
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/loader-runner/lib/LoaderRunner.js:367:11
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/loader-runner/lib/LoaderRunner.js:233:18
    at context.callback (/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/loader-runner/lib/LoaderRunner.js:111:13)
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/babel-loader/lib/index.js:59:103 {
  opensslErrorStack: [ 'error:03000086:digital envelope routines::initialization error' ],
  library: 'digital envelope routines',
  reason: 'unsupported',
  code: 'ERR_OSSL_EVP_UNSUPPORTED'
}

Node.js v17.2.0
error Command failed with exit code 1.
info Visit  for documentation about this mand.

I have been trying to make this React App, but when I try to do yarn start it shows the following error message:

yarn run v1.22.17
$ react-scripts start
node:internal/modules/cjs/loader:488
      throw e;
      ^

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/tokenize' is not defined by "exports" in /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/postcss-safe-parser/node_modules/postcss/package.json
    at new NodeError (node:internal/errors:371:5)
    at throwExportsNotFound (node:internal/modules/esm/resolve:429:9)
    at packageExportsResolve (node:internal/modules/esm/resolve:683:3)
    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> (/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/postcss-safe-parser/lib/safe-parser.js:1:17) {
  code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'
}

Node.js v17.2.0
error Command failed with exit code 1.
info Visit https://yarnpkg./en/docs/cli/run for documentation about this mand.

How do I fix this?

This is what it shows now:

Starting the development server...

/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/react-scripts/scripts/start.js:19
  throw err;
  ^

Error: error:0308010C:digital envelope routines::unsupported
    at new Hash (node:internal/crypto/hash:67:19)
    at Object.createHash (node:crypto:130:10)
    at module.exports (/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/webpack/lib/util/createHash.js:135:53)
    at NormalModule._initBuildHash (/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/webpack/lib/NormalModule.js:417:16)
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/webpack/lib/NormalModule.js:452:10
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/webpack/lib/NormalModule.js:323:13
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/loader-runner/lib/LoaderRunner.js:367:11
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/loader-runner/lib/LoaderRunner.js:233:18
    at context.callback (/home/abhishek/Documents/Code/weather-react/weather-react/node_modules/loader-runner/lib/LoaderRunner.js:111:13)
    at /home/abhishek/Documents/Code/weather-react/weather-react/node_modules/babel-loader/lib/index.js:59:103 {
  opensslErrorStack: [ 'error:03000086:digital envelope routines::initialization error' ],
  library: 'digital envelope routines',
  reason: 'unsupported',
  code: 'ERR_OSSL_EVP_UNSUPPORTED'
}

Node.js v17.2.0
error Command failed with exit code 1.
info Visit https://yarnpkg./en/docs/cli/run for documentation about this mand.

• javascript
• node.js
• reactjs
• yarnpkg

Share Improve this question Follow edited Dec 9, 2021 at 14:17 ouflak 2,5141010 gold badges4545 silver badges5252 bronze badges asked Dec 9, 2021 at 10:55 Abhishek HariAbhishek Hari 7377 bronze badges

Add a ment  | 

4 Answers 4

Sorted by: Reset to default 7

1. removed /node_modules and yarn.lock file. 2.then reinstalled deleted packages/file using yarn install .

Fixed! Downgraded to node 16.13.1 :)

Here is what I did!

1. Deleted 'node modules' folder & 'yarn.lock'

2. In 'package.json' , added these

   "start": "export SET NODE_OPTIONS=--openssl-legacy-provider && react-scripts start", "build": "export SET NODE_OPTIONS=--openssl-legacy-provider && react-scripts build"

3. yarn install

4. yarn start

I've removed my node_modeules and yarn.lock file, then runned the yarn install mand, after install all the libraries need i rathered run yarn start instead of npm start. It has solved my problems.

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