NPM Insall error (Angular 6)

Question

I have an Angular 6 project and when I try to execute it, it throws the following error:

Could not find module "@angular-devkit/build-angular" from "C:\\Users\\fernando.cavalcante\\Desktop\\Fernando_Backup\\VisualStudio2017\\Projects\\GerenciadorDiretorioAPI\\Presentattion".
Error: Could not find module "@angular-devkit/build-angular" from ...

I tried to update the packages but when I run npm install command, cmd throws the following message:

npm WARN tar ENOENT: no such file or directory, open 'C:\Users\me\Desktop\Folder1\Projects\My.Project\Developing\0 - Presentation\My.Project\node_modules\.staging\es5-ext-b75d419b\test\reg-exp\#\sticky\is-implemented.js'
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.3 (node_modules\fsevents):
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: 403 Forbidden: fsevents@https://registry.npmjs.org/fsevents/-/fsevents-1.1.3.tgz

npm ERR! code EINTEGRITY
npm ERR! sha1-PFtv1/beCRQmkCfwPAlGdY92c6Q= integrity checksum failed when using sha1: wanted sha1-PFtv1/beCRQmkCfwPAlGdY92c6Q= but got sha1-pMeCeEFUzmIX1LXY6ZTg7bwjcDY=. (4472399 bytes)

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\me\AppData\Roaming\npm-cache\_logs\2018-05-18T13_11_28_030Z-debug.log

I searched some solutions here, here, here and here, tried to reinstall Node, reinstall Angular and even searched in some unresolved questions but nothing worked for me.

I also tried this solution and run npm clean cache -f but didn't work.

I don't know how to proceed.

I'm using Angular CLI: 6.0.1 and Node: 8.11.2

What version of node are you running, and are you using angular-cli? — Michael Doye, May 18 '18 at 13:56
You can try running `npm i -D @angular-devkit/core` or maybe have a look at [this](https://github.com/angular/angular-cli/issues/9307) thread — Michael Doye, May 18 '18 at 14:04
It throws a several error line: `npm WARN tar ENOENT: no such file or directory, open ...` — Fernando Paz, May 18 '18 at 14:18
Possible duplicate of [Could not find module "@angular-devkit/build-angular"](https://stackoverflow.com/questions/50333003/could-not-find-module-angular-devkit-build-angular) — Muhammed Albarmavi, May 18 '18 at 14:34

score 2 · Accepted Answer · answered Dec 06 '18 at 05:05

Delete package-lock.json, even with @angular/cli @ version 7, I'm using version 6, and was having the same issue. Deleting the package-lock.json fixed this error for me. There was no need to delete node_modules as it would not even install any packages, but only throw errors.

score 1 · Answer 2 · answered May 18 '18 at 14:18

1

Delete your node_modules folder. rm -rf node_modules

Delete your package.lock.json file.

Might want to update your angular cli.

npm install -g @angular/cli@latest

or first run npm uninstall -g @angular/cli then npm install -g @angular/cli@latest

Now run npm install.

answered May 18 '18 at 14:18

Alf Moh

7,159
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It throws this error: `npm ERR! code EINTEGRITY npm ERR! sha512-K7g15Bb6Ra4lKf7Iq2l/I5/En+hLIHmxWZGq3D4DIRNFxMNV6j2SHSvDOqs2tGd4UvD/fJvrwopzQXjLrT7Itw== integrity checksum failed when using sha512: wanted sha512-K7g15Bb6Ra4lKf7Iq2l/I5/En+hLIHmxWZGq3D4DIRNFxMNV6j2SHSvDOqs2tGd4UvD/fJvrwopzQXjLrT7Itw== but got sha512-RHa70BV45f+STdQcnd+HMxg/xlFoZmEY4DZsUvfokR5Ts67zVcKENE4PfChk3he+4L29QUG5b7n97WGseaxr3w==. (1064527 bytes)` – Fernando Paz May 18 '18 at 14:32
Don't know what it means and have a lot of warnings after this error – Fernando Paz May 18 '18 at 14:33
Try `npm cache verify` or `npm cache clean` – Alf Moh May 18 '18 at 16:21

score 0 · Answer 3 · answered May 18 '18 at 14:59

0

Install dev dependency.

npm install --save-dev @angular-devkit/build-angular

Is a new package in Angular 6

answered May 18 '18 at 14:59

Matteo Ponzo

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It didn't work for me, still throwing the error message – Fernando Paz May 18 '18 at 16:27
copy the print of ng -v – Matteo Ponzo May 22 '18 at 17:55

NPM Insall error (Angular 6)

3 Answers3