[SOLVED] npm error Cannot find module './config/core.js'

npm error Cannot find module './config/core.js'

I'm facing an npm issue while utilizing the npm install and npm -v commands.

Below is the error log for the npm -v command when run in Windows Command Prompt:

C:\Users\Sameer>npm -v internal/modules/cjs/loader.js:905   throw err;
^

Error: Cannot find module './config/core.js' Require stack:
- C:\Program Files\nodejs\node_modules\npm\lib\npm.js
- C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:902:15)
    at Function.Module._load (internal/modules/cjs/loader.js:746:27)
    at Module.require (internal/modules/cjs/loader.js:974:19)
    at require (internal/modules/cjs/helpers.js:92:18)
    at C:\Program Files\nodejs\node_modules\npm\lib\npm.js:25:17
    at Object.<anonymous> (C:\Program Files\nodejs\node_modules\npm\lib\npm.js:502:3)
    at Module._compile (internal/modules/cjs/loader.js:1085:14)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
    at Module.load (internal/modules/cjs/loader.js:950:32)
    at Function.Module._load (internal/modules/cjs/loader.js:790:14) {   code: 'MODULE_NOT_FOUND',   requireStack: [
    'C:\\Program Files\\nodejs\\node_modules\\npm\\lib\\npm.js',
    'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js'   ] } internal/modules/cjs/loader.js:905   throw err;   ^

Error: Cannot find module './config/core.js' Require stack:
- C:\Program Files\nodejs\node_modules\npm\lib\npm.js
- C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:902:15)
    at Function.Module._load (internal/modules/cjs/loader.js:746:27)
    at Module.require (internal/modules/cjs/loader.js:974:19)
    at require (internal/modules/cjs/helpers.js:92:18)
    at C:\Program Files\nodejs\node_modules\npm\lib\npm.js:25:17
    at Object.<anonymous> (C:\Program Files\nodejs\node_modules\npm\lib\npm.js:502:3)
    at Module._compile (internal/modules/cjs/loader.js:1085:14)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
    at Module.load (internal/modules/cjs/loader.js:950:32)
    at Function.Module._load (internal/modules/cjs/loader.js:790:14) {   code: 'MODULE_NOT_FOUND',   requireStack: [
    'C:\\Program Files\\nodejs\\node_modules\\npm\\lib\\npm.js',
    'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js'   ] }

Node.js Version: v14.17.1
OS: Windows 10

I tried uninstalling node.js, and also tried installing the new node.js setup directly. However, I'm getting the below error on windows system when uninstalling and installing the node.js rollbacks:

Node.js uninstall/install error in windows system

Node.js

The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2330.

Any workarounds or suggestion to solve this type of issues with npm? Or any way to uninstall node.js and install a new version?

Solution

Uninstall NodeJS, then delete the C:\Program Files\nodejs directory, and finally reinstall NodeJS.