npm 发布导致“错误：EPERM：不允许操作，取消链接...”，错误号 -4048

Question

I'm trying to publish my NPM package: npm publish .

I get the following quite cryptic error:

npm ERR! path c:\Temp\npm-20936-b98f84c8\tmp\fromDir-02dd5394\package.tgz
npm ERR! code EPERM
npm ERR! errno -4048
npm ERR! syscall unlink
npm ERR! Error: EPERM: operation not permitted, unlink 'c:\Temp\npm-20936-b98f84c8\tmp\fromDir-02dd5394\package.tgz'
npm ERR!     at Error (native)
npm ERR!  { Error: EPERM: operation not permitted, unlink 'c:\Temp\npm-20936-b98f84c8\tmp\fromDir-02dd5394\package.tgz'
npm ERR!     at Error (native)
npm ERR!   cause:
npm ERR!    { Error: EPERM: operation not permitted, unlink 'c:\Temp\npm-20936-b98f84c8\tmp\fromDir-02dd5394\package.tgz'
npm ERR!        at Error (native)
npm ERR!      errno: -4048,
npm ERR!      code: 'EPERM',
npm ERR!      syscall: 'unlink',
npm ERR!      path: 'c:\\Temp\\npm-20936-b98f84c8\\tmp\\fromDir-02dd5394\\package.tgz' },
npm ERR!   isOperational: true,
npm ERR!   stack: 'Error: EPERM: operation not permitted, unlink \'c:\\Temp\\npm-20936-b98f84c8\\tmp\\fromDir-02dd5394\\package.tgz\'\n    at Error (native)',
npm ERR!   errno: -4048,
npm ERR!   code: 'EPERM',
npm ERR!   syscall: 'unlink',
npm ERR!   path: 'c:\\Temp\\npm-20936-b98f84c8\\tmp\\fromDir-02dd5394\\package.tgz' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.

Tried running as admin - same error.

NPM version: 5.4.0

Node version: 6.11.1

OS: Windows 10

Any leads?

Answer 1

Silly me. The answer was in the docs all along .

In order to publish you need to be logged in from your NPM cli.

So either do npm login if you already have a user on npmjs.com , or npm adduser to create one.

I would, however, appreciate a more informative error message.

Answer 2

I had the same problem on Windows.

The source of the problem is simple, it is access permission on folders and files. Click here

Answer 3

Here is my experience.

I was working on Atom, and did file drag drop on Atom, it cause error. So I exit atom on Win10 and run npm i again. It was successful.

Please turn off your editor or explorer which can restrict your project files and try again.

Answer 4

I changed to the new filesystem by remounting my windows drives. After that no problems anymore. Refer to the following link .

Answer 5

In some cases it is a matter of pointing to the correct package.json file. Had omitted the param in the before, causing the error.

Before: npm publish

After: npm publish C:\\Code\\my-proj\\dist\\@acme\\my-package

Answer 6

People who are still struggling, check your package.json file if you have something like publishConfig initialized.
Deleting this is what solved for me

Answer 7

In my case problem was incorrect param npm publish --opt=123456 (typo opt => otp ... one time password - 2factor). Terrible this misleading permission error The operation was rejected by your operating system. in case of wrong params.