This is a React web app. When I run
npm start
This error occurred
> [email protected] start
> 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 /Users/juliantc/Desktop/ai-studio/development/frontend/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:416:9)
at packageExportsResolve (node:internal/modules/esm/resolve:669:3)
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/juliantc/Desktop/ai- studio/development/frontend/node_modules/postcss-safe-parser/lib/safe-parser.js:1:17) {
code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'
}
Node.js v17.0.1
This error only occurs when I run this on this specific computer, which I do not have superuser access to. It works on other computers.
For reference, this is ./node_modules/postcss-safe-parser/node_modules/postcss/package.json
{
"name": "postcss",
"version": "8.2.6",
"description": "Tool for transforming styles with JS plugins",
"engines": {
"node": "^10 || ^12 || >=14"
},
"exports": {
".": {
"require": "./lib/postcss.js",
"import": "./lib/postcss.mjs",
"types": "./lib/postcss.d.ts"
},
"./": "./"
},
"main": "./lib/postcss.js",
"types": "./lib/postcss.d.ts",
"keywords": [
"css",
"postcss",
"rework",
"preprocessor",
"parser",
"source map",
"transform",
"manipulation",
"transpiler"
],
"funding": {
"type": "opencollective",
"url": "https://opencollective.com/postcss/"
},
"author": "Andrey Sitnik <[email protected]>",
"license": "MIT",
"homepage": "https://postcss.org/",
"repository": "postcss/postcss",
"dependencies": {
"colorette": "^1.2.1",
"nanoid": "^3.1.20",
"source-map": "^0.6.1"
},
"browser": {
"./lib/terminal-highlight": false,
"colorette": false,
"fs": false
}
}
And this is what I get when I list the files in ./node_modules/postcss-safe-parser/node_modules/postcss/lib/
lgtd-lt-119-mbmt:frontend juliantc$ ls ./node_modules/postcss-safe-parser/node_modules/postcss/lib/
at-rule.d.ts css-syntax-error.d.ts input.d.ts map-generator.js postcss.d.ts processor.js rule.js tokenize.js
at-rule.js css-syntax-error.js input.js node.d.ts postcss.js result.d.ts stringifier.js warn-once.js
comment.d.ts declaration.d.ts lazy-result.d.ts node.js postcss.mjs result.js stringify.d.ts warning.d.ts
comment.js declaration.js lazy-result.js parse.d.ts previous-map.d.ts root.d.ts stringify.js warning.js
container.d.ts fromJSON.d.ts list.d.ts parse.js previous-map.js root.js symbols.js
container.js fromJSON.js list.js parser.js processor.d.ts rule.d.ts terminal-highlight.js
I am also stuck with the same problem because I installed the latest version of Node.js (v17.0.1).
Just go for node.js v14.18.1
and remove the latest version just use the stable version v14.18.1
nvm uninstall <version>
OR
nvm uninstall v17.0.1
then install the LTS
one which is v14.18.1
nvm install --lts
This worked for me.
Remove node_modules folder and .lock file and re-install your packages (yarn or npm). It worked for me with last 17.0.1 of nodejs, I can npm (or yarn) start my app again.
my working solution was with yarn:
/node_modules
and yarn.lock
file.yarn install
.it worked !!!
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