Error: Cannot find module 'dezalgo'

[Vladyslav93]

Hi.
I have next problem, when I am trying to do something with npm (install, config, etc.) I got the message:
"Error: Cannot find module 'dezalgo'". This happened every time.

node -v:6.10.3
npm -v: "Error: Cannot find module 'dezalgo'".

Had someone the same? Please help.

Thanks.

[mcollina]

which version of npm are you using?
npm -v will tell you.

cc @zkat

[Fishrock123]

@vaibhav93 What platform are you on? If your are on Mac or Windows can you try using one of the Node.js installers to get a clean version of node and npm?

Otherwise, npm has install / uninstall instructions here: https://www.npmjs.com/package/npm

[zkat]

This is almost deffo a hosed npm install. That can happen for a lot of reasons :\

[Vladyslav93]

@mcollina I wrote that I can´t check the version, I got the error.
@Fishrock123 I'm working on Windows. I tried to reinstall node.js, after the installation everything works but after few installation, I got the same error.

[mcollina]

@Vladyslav93 as you can reinstall node to have a working environment, can you note down the npm version before it shows the problem, and then the steps needed to reproduce?

[Vladyslav93]

@mcollina Yeap. Sorry)
npm -v: 5.0.3

[mcollina]

@Vladyslav93 how did you install node v6 with npm@5? Have you tried to uninstalling your current version of node, cleaning up all the modules/etc, and then do a clean install of node 6 and npm@5?

Alternatively, can you try npm i npm@4 -g and see if it still shows the issue?

[Vladyslav93]

@mcollina After this line, everything works for now. But I did not understand what the problem with version 5?

[Vladyslav93]

[Fishrock123]

Looks like your system failed to compile a Native C++ module.

What version of VS Studio build tools do you have? (If any?)

[Vladyslav93]

@Fishrock123 I tried 2010,2012,2013,2015,2017. The same with everyone.

[Vladyslav93]

Put into cmd.exe line:

SET VCTargetsPath=C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140

[tskweres]

npm 5.6 throws this error, had to downgrade to 5.5.1

[mwilde345]

happened after i installed jquery package

[dtwlai]

@mwilde345 i have also come across that situation. The way i solved was uninstalling the jquery and installing the packages that i needed. And installed back the jquery package in the end.

[ghost]

Thank you @mcollina ! you saved my day :)

after this npm i npm@4 -g everything worked fine for me.

[mcollina]

@samee-ch no worries, happy to help!

[zaszlo]

Thanks for these suggestions

sudo npm install npm@4 -g
sudo npm install -g npm@5.5.1

But downgrading npm fails with the same message:

2 info using npm@5.6.0
3 info using node@v7.4.0
4 verbose stack Error: Cannot find module 'dezalgo'
4 verbose stack     at Function.Module._resolveFilename (module.js:470:15)
4 verbose stack     at Function.Module._load (module.js:418:25)
4 verbose stack     at Module.require (module.js:498:17)
4 verbose stack     at require (internal/module.js:20:19)
4 verbose stack     at Object.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/correct-mkdir.js:2:15)
4 verbose stack     at Module._compile (module.js:571:32)
4 verbose stack     at Object.Module._extensions..js (module.js:580:10)
4 verbose stack     at Module.load (module.js:488:32)
4 verbose stack     at tryModuleLoad (module.js:447:12)
4 verbose stack     at Function.Module._load (module.js:439:3)
4 verbose stack     at Module.require (module.js:498:17)
4 verbose stack     at require (internal/module.js:20:19)
4 verbose stack     at Object.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/locker.js:8:20)
4 verbose stack     at Module._compile (module.js:571:32)
4 verbose stack     at Object.Module._extensions..js (module.js:580:10)
4 verbose stack     at Module.load (module.js:488:32)
5 verbose cwd /home/laci/Dev/inventorything/inventory.angular
6 verbose Linux 4.4.0-112-generic
7 verbose argv "/usr/local/bin/node" "/usr/local/bin/npm" "install"
8 verbose node v7.4.0
9 verbose npm  v5.6.0
10 error code MODULE_NOT_FOUND
11 error Cannot find module 'dezalgo'
12 verbose exit [ 1, true ]

[ghost]

@zaszlo could you please try to remove package-lock.json + node-modules and run npm install. Hopefully, it will resolve this issue.

[zaszlo]

I purged nodejs with force :) and then reinstalled with nvm, now I don't get errors anymore :-D

[fdambrosio]

I have the same problem

[mcollina]

I would recommend to open an issue to https://github.com/npm/npm with a full example to reproduce. It's not a node bug anyway.

[andreas-tornqvist]

I had the same problem, and it turned out the anti-malware program was causing it. Deactivate it and see if it works any better

[hwangzhiming]

try to instal the latest npm with npm i -g npm@latest, remove the package-lock.json, then reinstall the deps.

[mojodna]

This sometimes happens if a package has a dependency on an older version of npm.

[jackhardy1]

if you are on npm version (global) of 5.6.0, there may be an issue.
Install npm version (global) 5.2.0, delete your node modules then reinstall and it should work

[murilo3m]

Thanks @jackhardy1 its worked for me!

[T04435]

For the solution was to:

rm -rf node_modules
npm i

On npm

npm -v 
5.6.0