NPM Install Error Unexpected end of JSON input while parsing near nt-webpack-plugin 0

Question

When Creating a new Angular 5 project   node version  8 9 2  npm version  5 5 1  My Command is   npm install -g  angular cli   the Error is   npm ERR    Unexpected end of JSON input while parsing near     nt-webpack-plugin   0    npm ERR  A complete log of this run can be found in  npm ERR      C  Users Aashitec AppData Roaming npm-cache  logs 2017-12-06T13 10 10 729Z-debug log   the error log is http   www aashitechno in 2017-12-06T13 10 10 729Z-debug log

User · Answer

If you looking for npm install and getting same kind of error Delete package-lock json and npm cache clean --force and try

User · Answer

I got error  file already exists --force to overwrite  after running the following code   npm cache clean --force npm install -g  angular cli   I solved it using    npm i -g --force npm   Make sure to run the first commands to flush the cache of npm

User · Answer

Solution    npm cache clean --force   then try again to create your app  here when creating a react app  or install what you were about to install   create-react-app myproject    creating react app  same npm problem that can occur in different operation   npm install -g  angular cli latest    installing angular cli  or installing anything else    It will work   explanation   That s a problem related to npm  it s about the cache that get corrupt  Even though in newer versions of npm they implemented self healing  which normally guarantee no corruption  but it seem it s not that efficient    Forcing clean cache resolve the problem    The error happen when parsing one of the cache files  which have a json format  The cache is found at    npm  cacache  in linux  and   AppData  npm-cache  windows   For my current npm version and when i checked  there was three directories    if you check the first or the second  the structure is as follow   And each cache file have a json format  and that what get parsed    Here a good link from the doc  https   docs npmjs com cli cache   Update  Also if it happen that this didn t solve it  you may check this answer here https   stackoverflow com a 50191315 7668448 it show how you can change the npm registry  that can be helpful  Check and see

User · Answer

Try setting npm config set strict-ssl false and then try running  npm install -g  angular cli

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Simple solutions   npm cache clean --force npm install

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If npm cache clean --force doesn t resolve the issue  try deleting the    npm directory   nix macOS   This is the directory where node stores its cache  locks  logs  global packages  unless you re using nvm   and modules installed via npx   First  backup your current    npm directory   mv    npm    npm-backup   Now try running your npm command again  This will create a new    npm directory  If the issue is resolved  you can safely remove you backup  Before doing so  you may want to review the global packages installed in your    npm-backup directory so you can reinstall them using npm i -g  package    rm -rf    npm-backup   If the issue is not resolved  you can restore your backup   rm -rf    npm mv    npm-backup    npm   Careful with those rm commands  folks

User · Answer

Npm uses Cache for downloading new packages for you  You need to clear your npm cache  use following command to clean    npm cache clean --force   then normally use your npm install command  e g    npm install -g  angular cli

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My case  - Windows 7  had nothing better at the needed moment   Helped me the following   Deleting everything from C  Users username AppData Roaming npm-cache  AND  Deleting  package-lock json

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For me I had to clone my branch again and do npm install

User · Answer

I solve that with     First delete package-lock json   npm cache clean --force   then update npm  npm i npm latest -g   then use npm install command  npm install

User · Answer

This bug may be caused by many different things Maybe your global packages are corrupted in some way  I suggest doing the following   1 Install Node Version Manager  or NVM for Windows  and install Node version 10 16 1  This is enough for angular 9 and from my experience  it is the most stable version for development  This should also change your NPM version so that may also help   2 Uninstall global angular package npm uninstall -g  angular cli  3 Force clear cache npm cache clean --force  4 You can also try clearing your  temp  and  roaming  AppData npm-cache  5 install latest angular package npm install -g  angular cli  lt your-version gt   6 if this error still occurs  consider using another shell    Source- https   www codegrepper com code-examples javascript npm ERR 21 Unexpected end of JSON input while parsing near  27   babel-plugin-istanbul 27 npm ERR 21 A complete log of this run can be found in 3A npm ERR 21 C 3A 5CUsers 5Csapho 5CAppData 5CRoaming 5Cnpm-cache 5C logs 5C2020-08-26T20 37 45 303Z-debug log Aborting installation

User · Answer

It s error from your npm      So unistall node and install it again   It works      PS  After installing node again  install angular cli globally   npm install -g  angular cli latest

User · Answer

I resolved my problem with this one liner  npm cache clean --force   It works like a charm all the time  I love one liners  Note  since its a clean install  I had no concerns emptying npm cache

User · Answer

Just faced the issue of Unexpected end of JSON input while parsing near   while adding the  radium  package in my React App  As a matter of fact  I am facing this issue even when trying to update the NPM to the latest version  Anyways  NPM didn t work after clearing the cache and it also won t update to the latest version right now but adding the package via Yarn did the trick for me  So  if you are in a hurry to solve this issue but you are not able to  then give yarn a try instead of npm  Happy Coding  Update After trying few things finally sudo npm cache clean --force worked for me  This can be a temporary glitch in your network or with something else in the npm registry

User · Answer

This happens something due to cache or outdated version of Node Package Manager i just updated my NPM it works fine here is command to update Npm to latest version npm i npm latest -g  after updating NPM run your desired command

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These commands worked for me  sudo npm cache clean --force  sudo npm cache verify  sudo npm i npm latest -g

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Even if npm cache clean --force  Try to execute the installing cmd in admin folder  i e C  Users admin This worked out for me

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ERROR  npm ERR  Unexpected end of JSON input while parsing near     ore-js   3 0 0-beta 1   This occurs when installing the expo CLI globally  This works for me   npm cache clean --force

User · Answer

I use Windows and removed all the files that were listed below and my problem was solved C  Users  your-username   AppData Roaming npm-cache

User · Answer

I solved that by first cleaning the cache using  npm cache clean --force   Then  npm install -g  angular cli

User · Answer

npm cache clean --force npm update  Do not forget to do  quot npm update quot   it is very important step

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Firstly uninstall the existing npm package  npm uninstall -g create-react-app  -g if you installed globally  Secondly  npm cache clean --force Thirdly  npm install -g create-react-app latest and create-react-app my-app again

User · Answer

None of the 30 answers here worked for me  I needed to   delete node modules and package-lock json npm cache clean --force npm install -g  angular cli npm i --package-lock-only npm ci  Phew

User · Answer

This solved it for me   Open Windows Powershell as admin  npm cache clean --force npm install -g  angular cli   https   devblogs microsoft com premier-developer getting-started-with-node-js-angular-and-visual-studio-code

User · Answer

If   npm cache clean --force   doesn t work  try  npm cache clean --force npm update

User · Answer

npm cache clean --force worked for me  Error Resolved      npm install -g gulp npm WARN deprecated gulp-util 3 0 8  gulp-util is deprecated - replace it  following the guidelines at https   medium com gulpjs gulp-util-ca3b1f9f9ac5 npm ERR  Unexpected end of JSON input while parsing near      RGs88STtAtiMP3tCiNdU   npm ERR  A complete log of this run can be found in  npm ERR      C  Users admin AppData Roaming npm-cache logs 2018-11-20T07 38 56 733Z-debug log

User · Answer

npm uninstall -g angular-cli  npm cache clear --force  OR Delete this folder directory  In Windows  rmdir C  Users  lt ProfileName gt  AppData Roaming npm rmdir C  Users  lt ProfileName gt  AppData Roaming npm-cache

User · Answer

delete npm and npm-cache folders in C  Users admin AppData Roaming   windows  then execute cmd     npm cache clear --force      npm cache verify   update npm to latest version     npm i -g npm   then create your project  1 Angular     npm i -g  angular cli latest      ng new HelloWorld   2 React     npm i -g create-react-app      create-react-app react-app

User · Answer

I ve faced this issue and I tried all the answers on Stackoverflow but not worked for me  finally I found solution for this issue    First of all you have to uninstall nodejs and remove all the files related him Go to  Register Editor  and search for all  nodejs    node js  and delete them Restart your computer And reinstall nodejs then install angular    It s worked for me

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Instead of clearing the cache you can set a temporary folder   npm install --cache  tmp empty-cache   or  npm install --global --cache  tmp empty-cache      As of npm 5  the npm cache self-heals from corruption issues and data extracted from the cache is guaranteed to be valid  If you want to make sure everything is consistent  use npm cache verify instead  On the other hand  if you re debugging an issue with the installer  you can use npm install --cache  tmp empty-cache to use a temporary cache instead of nuking the actual one

User · Answer

It s simple npm cache clean --force  then install node dependensis by npm install

User · Answer

Solution  npm cache clean --force   For Windows   go to C  Users username AppData Roaming npm-cache  Delete all files and run   npm install  amp  amp  npm start

User · Answer

You can use yarn package manager instead of npm   It solved this problem for me

User · Answer

I solve that with  npm cache clean --force   then update npm  npm i npm latest -g   then normally use your npm install command  npm install

User · Answer

This command alone solved my problem   npm cache clean --force   Also you should make sure you are using the correct version of node    Using nvm to manage the node version   nvm list    check your local versions  nvm install 10 10 0    install a new remote version  nvm alias default 10 10 0    set the 10 10 0 as the default node version  but you have to restart the terminal to make it take effect

User · Answer

this solved it npm cache clean --force

User · Answer

After this npm cache clean --force  may be you can hangup or waiting for further execution      npm WARN using --force I sure hope you know what you are doing    So you can also use this one  This resolve my issue       npm install --cache  tmp empty-cache

[node.js] NPM Install Error:Unexpected end of JSON input while parsing near '...nt-webpack-plugin":"0'

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