"Encountered npm error: JSON input ended unexpectedly" while trying to install express-mysql-session"

I'm currently developing a nodejs project that uses passportjs for user authentication and mysql as the database. I'm now looking to incorporate session storage by utilizing the ""express-mysql-session" package.

However, when attempting to install express-mysql-session using npm, I encountered this error:

$ npm install express-mysql-session --save
 npm ERR! Unexpected end of JSON input while parsing near '...ies":{"express":"3.3.'

 npm ERR! A complete log of this run can be found in:
 npm ERR!     C:\Users\user\AppData\Roaming\npm-cache\_logs\2021-07-22T10_22_41_836Z-debug.log

Interestingly, I can successfully install other packages without any issues.

This is the "complete log" of the installation process:

0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'C:\\Program Files (x86)\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files (x86)\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'install',
1 verbose cli   'express-mysql-session',
1 verbose cli   '--save'
1 verbose cli ]
(remaining log details...)

And here is the "package.json" file content:

{
    "name": "App Name",
     "version": "1.0.0",
    "description": "",
     "main": "index.js",
     "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
 },
 (remaining package details...)
}

I'm facing difficulties installing it on other projects as well.

What should be my next steps? Your suggestions are greatly appreciated.

Thank you to everyone who provides insights!

Answer №1

Could it be a corrupted cache causing the issue?

Try running npm cache clean with the --force flag

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