I have an error npm ERR! code EINVALIDTYPE when npm install in react app

[tmohammad78]

npm ERR! code EINVALIDTYPE
npm ERR! typeerror Error: Argument #2: Expected string but got null
npm ERR! typeerror at exports.findRequirement (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install\deps.js:752:3)
npm ERR! typeerror at findChild (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install\deps.js:122:17)
npm ERR! typeerror at computeMetadata (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install\deps.js:132:9)
npm ERR! typeerror at Installer.normalizeCurrentTree (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install.js:414:3)
npm ERR! typeerror at Array. (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\node_modules\slide\lib\bind-actor.js:15:8)
npm ERR! typeerror at LOOP (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\node_modules\slide\lib\chain.js:15:14)
npm ERR! typeerror at C:\Users\USER\AppData\Roaming\npm\node_modules\npm\node_modules\slide\lib\chain.js:18:7
npm ERR! typeerror at C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install.js:368:5
npm ERR! typeerror at C:\Users\USER\AppData\Roaming\npm\node_modules\npm\node_modules\iferr\iferr.js:3:64
npm ERR! typeerror at asyncMap (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\node_modules\slide\lib\async-map.js:27:18)
npm ERR! typeerror at exports.getAllMetadata (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install\deps.js:224:3)
npm ERR! typeerror at Installer.loadArgMetadata (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install.js:366:3)
npm ERR! typeerror at C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install.js:701:16
npm ERR! typeerror at C:\Users\USER\AppData\Roaming\npm\node_modules\npm\lib\install\read-shrinkwrap.js:33:16
npm ERR! typeerror at tryCatcher (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\util.js:16:23)
npm ERR! typeerror at Promise._settlePromiseFromHandler (C:\Users\USER\AppData\Roaming\npm\node_modules\npm\node_modules\bluebird\js\release\promise.js:517:31)
npm ERR! typeerror This is an error with npm itself. Please report this error at:
npm ERR! typeerror https://npm.community

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\USER\AppData\Roaming\npm-cache_logs\2020-03-08T18_03_24_062Z-debug.log

node version : v 13.10.1
npm version : v 6.14.2

[DanielRuf]

Hi @tmohammad78,

please provide the steps to reproduce this.

[tmohammad78]

Hi @tmohammad78,

please provide the steps to reproduce this.

I have node on older version , by an error for installing typescript I installed new version node and upgrade it to 13.10.1 , and after that I started my react app it was without problem but again I saw this error and I re-installed but wasn't okay. I re-installed version 12 not worked

[ronpx]

I am having the same issue

PS D:\CPortal-PF> npm i  @angular/animation  hammerjs@2.0.8 --save
npm ERR! code EINVALIDTYPE
npm ERR! typeerror Error: Argument #2: Expected string but got null
npm ERR! typeerror     at exports.findRequirement (C:\Program Files\nodejs\node_modules\npm\lib\install\deps.js:752:3)
npm ERR! typeerror     at findChild (C:\Program Files\nodejs\node_modules\npm\lib\install\deps.js:122:17)
npm ERR! typeerror     at computeMetadata (C:\Program Files\nodejs\node_modules\npm\lib\install\deps.js:139:11)
npm ERR! typeerror     at Installer.normalizeCurrentTree (C:\Program Files\nodejs\node_modules\npm\lib\install.js:414:3)
npm ERR! typeerror     at Array.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\slide\lib\bind-actor.js:15:8)
npm ERR! typeerror     at LOOP (C:\Program Files\nodejs\node_modules\npm\node_modules\slide\lib\chain.js:15:14)
npm ERR! typeerror     at C:\Program Files\nodejs\node_modules\npm\node_modules\slide\lib\chain.js:18:7
npm ERR! typeerror     at C:\Program Files\nodejs\node_modules\npm\lib\install.js:368:5
npm ERR! typeerror     at C:\Program Files\nodejs\node_modules\npm\node_modules\iferr\iferr.js:3:64
npm ERR! typeerror     at cb (C:\Program Files\nodejs\node_modules\npm\node_modules\slide\lib\async-map.js:47:24)
npm ERR! typeerror     at C:\Program Files\nodejs\node_modules\npm\node_modules\call-limit\call-limit.js:28:43
npm ERR! typeerror     at processTicksAndRejections (internal/process/task_queues.js:79:11)
npm ERR! typeerror This is an error with npm itself. Please report this error at:
npm ERR! typeerror     <https://npm.community>

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\ronaldjayph\AppData\Roaming\npm-cache\_logs\2020-03-20T03_47_20_598Z-debug.log

[DanielRuf]

Which exact version of npm and node do you use?

[ronpx]

Which exact version of npm and node do you use?

This, also replied to another thread.

node -v - v12.16.0
npm -v 6.13.4

[DanielRuf]

Can not reproduce:

npm-issue-993 npm i  @angular/animation  hammerjs@2.0.8 --save
npm WARN saveError ENOENT: no such file or directory, open '/home/druf/Schreibtisch/npm-issue-993/package.json'
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN enoent ENOENT: no such file or directory, open '/home/druf/Schreibtisch/npm-issue-993/package.json'
npm WARN @angular/animation@4.0.0-beta.8 requires a peer of @angular/core@4.0.0-beta.8 but none is installed. You must install peer dependencies yourself.
npm WARN npm-issue-993 No description
npm WARN npm-issue-993 No repository field.
npm WARN npm-issue-993 No README data
npm WARN npm-issue-993 No license field.

+ hammerjs@2.0.8
+ @angular/animation@4.0.0-beta.8
added 2 packages from 4 contributors and audited 2 packages in 1.979s
found 0 vulnerabilities

node -v && npm -v
v10.16.0
6.13.4

[DanielRuf]

Not sure if this happens only on Windows.

[tmohammad78]

for solve it i copied my package.json from another project and i got i had a problem in my package.json file

[DanielRuf]

Ok then please close the issue.