[Solved] npm ERR! code E401 npm ERR! Incorrect or missing password

Today We are Going To Solve npm ERR! code E401 npm ERR! Incorrect or missing password in javascript. Here we will Discuss All Possible Solutions and How this error Occurs So let’s get started with this Article.

Contents

1 How to Fix npm ERR! code E401 npm ERR! Incorrect or missing password Error?
2 Conclusion
- 2.1 Also Read This Solutions

How to Fix npm ERR! code E401 npm ERR! Incorrect or missing password Error?

How to Fix npm ERR! code E401 npm ERR! Incorrect or missing password Error?
To Fix npm ERR! code E401 npm ERR! Incorrect or missing password Error just Delete the package-lock.json. Just follow this step to remove your error completely.
First of all, before running the command “npm install” after upgrading the node versions you have to just Delete the package-lock.json file. After doing this your code run successfully. and in case it's not working for you then just remove the .npmrc file in $HOME directory. That will work for you. So try this.
npm ERR! code E401 npm ERR! Incorrect or missing password
To Fix npm ERR! code E401 npm ERR! Incorrect or missing password Error just Delete some files. Here to remove this error you have to delete some files in your directory C/Users/your-windows-username/. So you have to delete these files first of all which are not necessary. .npmrc .cache .package .package-lock And then just go to the terminal and run this command. By running it you will find your error solved. npm i Hope this will help you.

Solution 1 : Delete the package-lock.json

Just follow this step to remove your error completely.

First of all, before running the command “npm install” after upgrading the node versions you have to just Delete the package-lock.json file. After doing this your code run successfully. and in case it’s not working for you then just remove the .npmrc file in $HOME directory. That will work for you. So try this.

Solution 2 : Delete some files

Here to remove this error you have to delete some files in your directory C/Users/your-windows-username/. So you have to delete these files first of all which are not necessary.

.npmrc
.cache
.package
.package-lock

And then just go to the terminal and run this command. By running it you will find your error solved.

npm i

Hope this will help you.

Solution 3 : Downgrade to npm v6

If you have bug on npm like i have npm v7 than also occures this error. To solve this error you have to just downgrade to v6 and the error must be solved.

Solution 2 : Update node.js

To solve this error just update your node.js or reinstall the latest version of node.js. This will help you to solve the error.

Conclusion

So these were all possible solutions to this error. I hope your error has been solved by this article. In the comments, tell us which solution worked? If you liked our article, please share it on your social media and comment on your suggestions. Thank you.