I've been having this problem recently that nothing related to npm is working for me except npm start.
npm install is giving this error:
$ npm install @material-ui/core npm ERR! Object for dependency "@babel/generator" is empty. npm ERR! Something went wrong. Regenerate the package-lock.json with "npm install". npm ERR! If using a shrinkwrap, regenerate with "npm shrinkwrap". npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\Parth\AppData\Roaming\npm-cache\_logs\2020-08-20T13_52_13_701Z-debug.log
npx create-react-app ./ is giving this error:
npx create-react-app ./ npx: installed 98 in 10.023s Creating a new React app in G:\hel. Installing packages. This might take a couple of minutes. Installing react, react-dom, and react-scripts with cra-template... yarn add v1.22.4 [1/4] Resolving packages... [2/4] Fetching packages... error An unexpected error occurred: "UNKNOWN: unknown error, unlink 'C:\\Users\\Parth\\AppData\\Local\\Yarn\\Cache\\v6\\npm-core-js-pure-3.6.4-4bf1ba866e25814f149d4e9aaa08c36173506e3a-integrity\\node_modules\\core-js-pure\\features\\object\\is-frozen.js'". info If you think this is a bug, please open a bug report with the information provided in "G:\\hel\\yarn-error.log". info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command. Aborting installation. yarnpkg add --exact react react-dom react-scripts cra-template --cwd G:\hel has failed. Deleting generated file... package.json Deleting generated file... yarn.lock Done.
EDIT: So I tried using Yarn for my installs but got this error:
$ yarn add @material-ui/core yarn add v1.22.4 warning package-lock.json found. Your project contains lock files generated by tools other than Yarn. It is advised not to mix package managers in order to avoid resolution inconsistencies caused by unsynchronized lock files. To clear this warning, remove package-lock.json. [1/4] Resolving packages... [2/4] Fetching packages... error An unexpected error occurred: "UNKNOWN: unknown error, unlink 'C:\\Users\\Parth\\AppData\\Local\\Yarn\\Cache\\v6\\npm-core-js-pure-3.6.4-4bf1ba866e25814f149d4e9aaa08c36173506e3a-integrity\\node_modules\\core-js-pure\\features\\object\\is-frozen.js'". info If you think this is a bug, please open a bug report with the information provided in "F:\\Parth\\covid-19-tracker\\yarn-error.log". info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.
How do I fix this?
Edit: My version of npm is 6.14.8
First of all you need to make sure that your node and npm versions are up to date. if not please upgrade your node and npm packages to latest versions.
nvm install 12.18.3 // update node version through node version manager
npm install npm // update your npm version to latest
Delete your node_modules folder, package-lock.json and yarn file (if you have).
Force clean the entire NPM cache by using following comand.
npm cache clean --force
Re-Install all the dependencies.
npm install
If above step didn't resolve your problem, try to uninstall yarn globally by delete the Yarn folder from global folder and then run.
npm uninstall -g yarn