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npm windows install globally results in npm ERR! extraneous

I am trying some "cookbook-examples" on the site 'http://tech.pro/tutorial/1190/package-managers-an-introductory-guide-for-the-uninitiated-front-end-developer#front_end_developers'. You should not have to look there now, but I thought it could be good to share the site. So far so good, til it comes to the global installing.

When it comes to the point trying to install something globally I get stuck.

What I did so far for testing globally installing some package:

  1. Created test-directory grunttest

  2. Inside that directory:

    npm install -g jshint

Output I can see:

 npm http GET https://registry.npmjs.org/jshint
 npm http 304 https://registry.npmjs.org/jshint
 ...
 npm http 304 https://registry.npmjs.org/string_decoder
 C:\Program Files\nodejs\node_modules\npm\jshint -> C:\Program Files\nodejs\node_modules\npm\node_modules\jshinnt
 [email protected] C:\Program Files\nodejs\node_modules\npm\node_modules\jshint
 ├── [email protected]
 ├── [email protected]
 ├── [email protected]
 ├── [email protected]
 ├── [email protected] ([email protected], [email protected])
 ├── [email protected] ([email protected])
 └── [email protected] ([email protected], [email protected], [email protected], [email protected])

I just realize the 304, which should be ok, due to just says the resource was not modified since last installation (few minutes before).

Checking if the jshint exists with:

`npm -global list`

Output:

[email protected] C:\Program Files\nodejs\node_modules\npm
├── [email protected]
├── [email protected]
├─...
├──
├── [email protected]
├── [email protected]
├── [email protected]
├─┬ [email protected]
│ └── [email protected]
├─┬ [email protected] extraneous
│ ├─┬ [email protected]
│ │ └─┬ [email protected]
│ │   └── [email protected]
│ ├── [email protected]
│ ├── [email protected]
│ ├─┬ [email protected]
│ │ ├── [email protected]
│ │ ├── [email protected]
│ │ ├── [email protected]
│ │ └─┬ [email protected]
│ │   └─... ├── [email protected]
├── [email protected]
└── [email protected]

**npm ERR! extraneous: [email protected] C:\Program Files\nodejs\node_modules\npm\node_modules\jshint npm**

Questions:

  1. Why do I get npm ERR! extraneous ...?
  2. What does it mean?
  3. How can I resolve this issue?

Information:

I am on a windows-machine Windows 7, using cygwin as shell. trying to just the jshint (jshint someTestfile.js) of course does not work.

Solution

  • npm ERR! extraneous means a package is installed but is not listed in your project's package.json.

    Since you're listing packages that have been installed globally, it's going to give you a lot of extraneous errors that can be simply ignored because most things installed globally will not be in your project's package.json.