Npm Please try using this command again as root/ad

Question

I've been desperately trying to install modules using node.js but it always fails getting packages with npm.

I logged in as Administrator and used powershell/cmd with "run as administrator". I also had problems with the registry so I used npm set registry http://registry.npmjs.org/

I tried everything... it just drives me nuts.

Here are the errors:

npm ERR! Please try running this command again as root/Administrator.

npm ERR! System Windows_NT 6.2.9200
npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "generator-knockout"
npm ERR! cwd D:\Sergiu\Knockout Test
npm ERR! node -v v0.10.26
npm ERR! npm -v 1.4.3
npm ERR! path D:\Sergiu\Knockout Test\node_modules\generator-knockout\node_modules\yeoman-generator\node_modules\tar\node_modules\block-stream\block-stream.js
npm ERR! fstream_path D:\Sergiu\Knockout Test\node_modules\generator-knockout\node_modules\yeoman-generator\node_modules\tar\node_modules\block-stream\block-stream.js
npm ERR! fstream_type File
npm ERR! fstream_class FileWriter
npm ERR! code EPERM
npm ERR! errno 50
npm ERR! stack Error: EPERM, lstat 'D:\Sergiu\Knockout Test\node_modules\generator-knockout\node_modules\yeoman-generator\node_modules\tar\node_modules\block-stream\block-stream.js'
npm ERR! fstream_stack C:\Program Files\nodejs\node_modules\npm\node_modules\fstream\lib\writer.js:284:26
npm ERR! fstream_stack Object.oncomplete (fs.js:107:15)
npm ERR! Error: EPERM, lstat 'D:\Sergiu\Knockout Test\node_modules\generator-knockout\node_modules\yeoman-generator\node_modules\tar\node_modules\fstream\LICENSE'
npm ERR!  { [Error: EPERM, lstat 'D:\Sergiu\Knockout Test\node_modules\generator-knockout\node_modules\yeoman-generator\node_modules\tar\node_modules\fstream\LICENSE']
npm ERR!   errno: 50,
npm ERR!   code: 'EPERM',
npm ERR!   path: 'D:\\Sergiu\\Knockout Test\\node_modules\\generator-knockout\\node_modules\\yeoman-generator\\node_modules\\tar\\node_modules\\fstream\\LICENSE',
npm ERR!   fstream_type: 'File',
npm ERR!   fstream_path: 'D:\\Sergiu\\Knockout Test\\node_modules\\generator-knockout\\node_modules\\yeoman-generator\\node_modules\\tar\\node_modules\\fstream\\LICENSE',
npm ERR!   fstream_class: 'FileWriter',
npm ERR!   fstream_stack:
npm ERR!    [ 'C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\fstream\\lib\\writer.js:284:26',
npm ERR!      'Object.oncomplete (fs.js:107:15)' ] }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.

Answer 1

Like the other answers, clean npm cache and make sure the cache folder is empty, then run npm install several times. Each time the error message comes for different packages, and the final time (after X attempts) it succeeds.

1. Run npm clean cache --force
2. cd %APPDATA%\npm-cache (or cd $env:APPDATA\npm-cache for PowerShell)
3. del * to delete everything in the folder
4. Go back into the project folder and run npm install several times until it succeeds. Notice that the error messages come for different packages every time.

Answer 2

I don't know which steps worked for me. But these are my steps to get rid of this error:

1. Updated Node.js
2. Ran npm cache clean command in Command prompt ( With some element of doubt for cache presence)
3. Ran react-native init in command prompt as Administrator (on Windows OS), hoping works well with sudo react-native init on Mac OS

Answer 3

npm cache verify

Try for newer versions of npm.

I'm using v 5.5.1 and it's working fine.

Answer 4

FINALLY Got this working after 4 hours of installing, uninstalling, updating, blah blah.

The only thing that did it was to use an older version of node v8.9.1 x64

This was a PC windows 10.

Hope this helps someone.