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Rishi
Rishi

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npm ERR! Unexpected end of JSON input while parsing near

You are trying to create a new angular, react, vue app, and you end up with an error message saying:

npm ERR! Unexpected end of JSON input while parsing near

Alt Text

There's a high chance that your npm cache been damaged.

Try:

npm cache clean --force

If you are a windows user, try deleting all files in this folder:

C:\Users{{your-username}}\AppData\Roaming\npm-cache

Then...

npm cache verify

If that doesn't work, try updating to the lastest (understand the risks)

npm i npm@latest -g

I hope this helps!

Top comments (45)

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thealjey profile image
Eugene Kuzmenko • Edited on

It doesn't help. It's dumb to suggest for people to clean their cache every time.
The --force flag is there for a reason. It's giving you the option, while at the same time trying to persuade you not to do it.
What I wish is for some of these articles to suggest a way to identify the failing package.
Because the npm error logs are less than useless in this regard.
It needs to print the url it was trying to fetch, and not just say that it failed to parse some abstract json, coming from God only knows where.
On any decently sized project there are hundreds of packages.
Many companies use proxy servers for npm.
An attempt to load a package can fail for a multitude of reasons.

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davidakinjames profile image
Akinwande Akin-James

So what do you sugggest?

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thealjey profile image
Eugene Kuzmenko

I am, honestly, yet to find a good solution for this.
The problem is not so much with this article as it is with npm itself.
Just use yarn if you can 😀

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davidakinjames profile image
Akinwande Akin-James • Edited on

Its all good

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anproghub profile image
Ankush Chauhan • Edited on

first run

npm i -g create-react-app

image1
then it will update and remove some package in this directly to




**Then your can easily run**

 ```npx create-react-app my-app```



and it will works !!!!!
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rishiabee profile image
Rishi

Nice!!! Thanks Ankush.

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dmakuto profile image
Derick Makuto Simiyu

Unexpected end of JSON input while parsing near '...13G5T8C+0g+Ie\nFKMevH'
I'm a windows user n got the above error while running create-react-app on my terminal.
After deleting everything in npm-cache, then ran npm cache verify, the create-react-app command installed...
Thanks!

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ronnielutalo profile image
Ronnie Lutalo

Hello! this has worked for me too. Thanks!

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rishiabee profile image
Rishi

Nice!!!

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madhusudanbabar profile image
Krypton

But i get this error for every single installation,
I tried with --cache to temporarily set another cache directory but still,
It happens everytime with me

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rishiabee profile image
Rishi • Edited on

Normally,
npm cache clean --force
solves the problem for most people.

If you scenario permits, you can consider a full uninstall of npm + delete the C:\Users{{your-username}}\AppData\Roaming\npm-cache folder.

Then re-install npm.

Finally, if nothing works for you, give yarnpkg.com/ a try.
You'll find yarn faster than npm :-)

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madhusudanbabar profile image
Krypton

Yeah,
I already switched to yarn
Thanks 😇

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rishiabee profile image
Rishi

Nice!!!
Always have a plan B :-)

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arrefl profile image
Ariel Reyes

How can I really switch to Yarn and avoid PACKAGE.JSON MIXING?

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arrefl profile image
Ariel Reyes

Ahhh Sorry. Thnks it worked.

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stasdomanskyi profile image
Stanislav Domanskyi

Thank you! I had the same issue with executing npm i -g @loopback/cli

It has helped me but first I switched through the nvm from node v12.19.0 to 10.22.1
After following all above instructions finally I've got this package.

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russelsantos19 profile image
Russel Santos

I had the same problem but npm cache clean --force didn't work for me. What I did was CLEAN MY PC using my cleaner(CCleaner) and npm install work now. I did it because the problem appears after I uninstall my node.js because I want to install nvm-windows on my PC (docs.microsoft.com/en-us/windows/n...), but after I did it I think some files and folders was leave behind making a conflict after I install node using nvm thus npm install do not work. So I thought cleaning my pc would solve the problem and it did.
These are just my thoughts. Hope to help someone.

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incubers31 profile image
incubers31

E:\xampp\htdocs\sumit\angular>npm install -g @angular/cli
npm ERR! Response timeout while trying to fetch registry.npmjs.org/@schematics%2fa... (over 30000ms)

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\sam\AppData\Roaming\npm-cache_logs\2020-07-20T06_40_14_633Z-debug.log

Please tell me why this issue occurring during installing Angular

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binel01 profile image
Binel binel

This really helped me. I was facing that issue when trying to create a new Angular project and an ionic project. After cleaning my NPM cache, I successfully installed the ionic app.

Thank you very much.

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ollyimanishimwe profile image
Olly

Thanks!
it worked smothly.

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abrahamhassan08 profile image
Abraham Hassan

Rishi, thank you so much for the instructions! This fixed the error.

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rishiabee profile image
Rishi

Glad it helped!

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infortraining profile image
infortraining

Resolveu meu problema, muito obrigado!

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pradip_nalwaya profile image
Pradip Nalwaya

Hey Rishi, Thanks for it.
After Cashe and Delete All data from \AppData\Roaming\npm-cache. Then Updates npm with Latest Version. and Install Cordova . now it's done. Working Fine, Now All.

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_andwati profile image
Andwati

Thanks alot. I had issues installing gulp-cli, this solution fixed it

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habimanasharif profile image
habimanasharif

i had also struggled with this error and this and i have solved this error by using running the command npm install in an adminstrator terminal and it worked on ubuntu os

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moojob profile image
Moojob

This fixed the error. thank you so much for the instructions!

Hey! Check out this week's Meme Monday post