安装以及出错误提示如下：
mbp:~ wfp$ npm install http-server -g
npm ERR! tar.unpack untar error /Users/wfp/.npm/http-server/0.8.0/package.tgz
npm ERR! Darwin 14.1.1
npm ERR! argv "node" "/usr/local/bin/npm" "install" "http-server" "-g"
npm ERR! node v0.12.2
npm ERR! npm v2.7.4
npm ERR! path /usr/local/lib/node_modules/http-server
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! Error: EACCES, mkdir '/usr/local/lib/node_modules/http-server'
npm ERR! at Error (native)
npm ERR! { [Error: EACCES, mkdir '/usr/local/lib/node_modules/http-server']
npm ERR! errno: -13,
npm ERR! code: 'EACCES',
npm ERR! path: '/usr/local/lib/node_modules/http-server',
npm ERR! fstream_type: 'Directory',
npm ERR! fstream_path: '/usr/local/lib/node_modules/http-server',
npm ERR! fstream_class: 'DirWriter',
npm ERR! fstream_stack:
npm ERR! [ '/usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:36:23',
npm ERR! '/usr/local/lib/node_modules/npm/node_modules/mkdirp/index.js:46:53',
npm ERR! 'FSReqWrap.oncomplete (fs.js:95:15)' ] }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! Please include the following file with any support request:
npm ERR! /Users/wfp/npm-debug.log
日志记录如下：
0 info it worked if it ends with ok
1 verbose cli [ 'node', '/usr/local/bin/npm', 'install', 'http-server', '-g' ]
2 info using npm@2.7.4
3 info using node@v0.12.2
4 silly cache add args [ 'http-server', null ]
5 verbose cache add spec http-server
6 silly cache add parsed spec { raw: 'http-server',
6 silly cache add scope: null,
6 silly cache add name: 'http-server',
6 silly cache add rawSpec: '',
6 silly cache add spec: '*',
6 silly cache add type: 'range' }
7 verbose addNamed http-server@*
8 silly addNamed semver.valid null
9 silly addNamed semver.validRange *
10 silly addNameRange { name: 'http-server', range: '*', hasData: false }
11 silly mapToRegistry name http-server
12 silly mapToRegistry using default registry
13 silly mapToRegistry registry https://registry.npmjs.org/
14 silly mapToRegistry uri https://registry.npmjs.org/http-server
15 verbose addNameRange registry:https://registry.npmjs.org/http-server not in flight; fetching
16 verbose request uri https://registry.npmjs.org/http-server
17 verbose request no auth needed
18 info attempt registry request try #1 at 13:19:49
19 verbose request id ded304ef8a375eb0
20 verbose etag "49E8TO09NC75K07BOJVRPOK44"
21 http request GET https://registry.npmjs.org/http-server
22 http 304 https://registry.npmjs.org/http-server
23 silly get cb [ 304,
23 silly get { date: 'Mon, 11 May 2015 05:19:52 GMT',
23 silly get via: '1.1 varnish',
23 silly get 'cache-control': 'max-age=60',
23 silly get etag: '"49E8TO09NC75K07BOJVRPOK44"',
23 silly get age: '0',
23 silly get connection: 'keep-alive',
23 silly get 'x-served-by': 'cache-nrt6127-NRT',
23 silly get 'x-cache': 'HIT',
23 silly get 'x-cache-hits': '1',
23 silly get 'x-timer': 'S1431321592.180557,VS0,VE167',
23 silly get vary: 'Accept' } ]
24 verbose etag https://registry.npmjs.org/http-server from cache
25 verbose get saving http-server to /Users/wfp/.npm/registry.npmjs.org/http-server/.cache.json
26 silly addNameRange number 2 { name: 'http-server', range: '*', hasData: true }
27 silly addNameRange versions [ 'http-server',
27 silly addNameRange [ '0.1.0',
27 silly addNameRange '0.1.1',
27 silly addNameRange '0.1.3',
27 silly addNameRange '0.2.1',
27 silly addNameRange '0.2.2',
27 silly addNameRange '0.2.3',
27 silly addNameRange '0.2.4',
27 silly addNameRange '0.2.5',
27 silly addNameRange '0.2.6',
27 silly addNameRange '0.2.9',
27 silly addNameRange '0.3.0',
27 silly addNameRange '0.4.0',
27 silly addNameRange '0.4.1',
27 silly addNameRange '0.5.0',
27 silly addNameRange '0.5.1',
27 silly addNameRange '0.5.2',
27 silly addNameRange '0.5.3',
27 silly addNameRange '0.5.5',
27 silly addNameRange '0.6.0',
27 silly addNameRange '0.6.1',
27 silly addNameRange '0.7.0',
27 silly addNameRange '0.7.1',
27 silly addNameRange '0.7.2',
27 silly addNameRange '0.7.3',
27 silly addNameRange '0.7.4',
27 silly addNameRange '0.7.5',
27 silly addNameRange '0.8.0' ] ]
28 verbose addNamed http-server@0.8.0
29 silly addNamed semver.valid 0.8.0
30 silly addNamed semver.validRange 0.8.0
31 silly cache afterAdd http-server@0.8.0
32 verbose afterAdd /Users/wfp/.npm/http-server/0.8.0/package/package.json not in flight; writing
33 verbose afterAdd /Users/wfp/.npm/http-server/0.8.0/package/package.json written
34 silly install resolved [ { name: 'http-server',
34 silly install resolved version: '0.8.0',
34 silly install resolved description: 'A simple zero-configuration command-line http server',
34 silly install resolved main: './lib/http-server',
34 silly install resolved repository:
34 silly install resolved { type: 'git',
34 silly install resolved url: 'git://github.com/indexzero/http-server.git' },
34 silly install resolved keywords: [ 'cli', 'command' ],
34 silly install resolved scripts:
34 silly install resolved { start: 'node ./bin/http-server',
34 silly install resolved pretest: 'stylezero bin/ lib/ test',
34 silly install resolved test: 'vows --spec --isolate' },
34 silly install resolved contributors:
34 silly install resolved [ [Object],
34 silly install resolved [Object],
34 silly install resolved [Object],
34 silly install resolved [Object],
34 silly install resolved [Object],
34 silly install resolved [Object],
34 silly install resolved [Object],
34 silly install resolved [Object],
34 silly install resolved [Object],
34 silly install resolved [Object] ],
34 silly install resolved dependencies:
34 silly install resolved { colors: '1.0.3',
34 silly install resolved optimist: '0.6.x',
34 silly install resolved union: '~0.4.3',
34 silly install resolved ecstatic: '~0.7.0',
34 silly install resolved 'http-proxy': '^1.8.1',
34 silly install resolved portfinder: '0.4.x',
34 silly install resolved opener: '~1.4.0',
34 silly install resolved corser: '~2.0.0' },
34 silly install resolved devDependencies: { vows: '0.7.x', request: '2.49.x', stylezero: '2.2.0' },
34 silly install resolved bugs: { url: 'https://github.com/nodeapps/http-server/issues' },
34 silly install resolved licenses: [ [Object] ],
34 silly install resolved preferGlobal: 'true',
34 silly install resolved bin: { 'http-server': './bin/http-server', hs: './bin/http-server' },
34 silly install resolved gitHead: 'ac38a041c954c863fd695b0f70ba251399856812',
34 silly install resolved homepage: 'https://github.com/indexzero/http-server',
34 silly install resolved _id: 'http-server@0.8.0',
34 silly install resolved _shasum: 'd4b671781ec6bf9fa6a311cd1df683b0b37b1491',
34 silly install resolved _from: 'http-server@*',
34 silly install resolved _npmVersion: '2.2.0',
34 silly install resolved _nodeVersion: '0.10.33',
34 silly install resolved _npmUser: { name: 'indexzero', email: 'charlie.robbins@gmail.com' },
34 silly install resolved maintainers: [ [Object] ],
34 silly install resolved dist:
34 silly install resolved { shasum: 'd4b671781ec6bf9fa6a311cd1df683b0b37b1491',
34 silly install resolved tarball: 'http://registry.npmjs.org/http-server/-/http-server-0.8.0.tgz' },
34 silly install resolved directories: {},
34 silly install resolved _resolved: 'https://registry.npmjs.org/http-server/-/http-server-0.8.0.tgz',
34 silly install resolved readme: 'ERROR: No README data found!' } ]
35 info install http-server@0.8.0 into /usr/local/lib
36 info installOne http-server@0.8.0
37 verbose installOne of http-server to /usr/local/lib not in flight; installing
38 verbose lock using /Users/wfp/.npm/_locks/http-server-ae30c9ae1f4c5eaa.lock for /usr/local/lib/node_modules/http-server
39 silly install write writing http-server 0.8.0 to /usr/local/lib/node_modules/http-server
40 silly cache addNamed cb http-server@0.8.0
41 verbose unbuild lib/node_modules/http-server
42 silly gentlyRm /usr/local/lib/node_modules/http-server is being purged from base /usr/local
43 verbose gentlyRm don't care about contents; nuking /usr/local/lib/node_modules/http-server
44 verbose tar unpack /Users/wfp/.npm/http-server/0.8.0/package.tgz
45 verbose tar unpacking to /usr/local/lib/node_modules/http-server
46 silly gentlyRm /usr/local/lib/node_modules/http-server is being purged
47 verbose gentlyRm don't care about contents; nuking /usr/local/lib/node_modules/http-server
48 silly gunzTarPerm modes [ '755', '644' ]
49 error tar.unpack untar error /Users/wfp/.npm/http-server/0.8.0/package.tgz
50 verbose unlock done using /Users/wfp/.npm/_locks/http-server-ae30c9ae1f4c5eaa.lock for /usr/local/lib/node_modules/http-server
51 verbose fstream_path /usr/local/lib/node_modules/http-server
52 verbose fstream_type Directory
53 verbose fstream_class DirWriter
54 verbose stack Error: EACCES, mkdir '/usr/local/lib/node_modules/http-server'
54 verbose stack at Error (native)
55 verbose fstream_stack /usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:36:23
55 verbose fstream_stack /usr/local/lib/node_modules/npm/node_modules/mkdirp/index.js:46:53
55 verbose fstream_stack FSReqWrap.oncomplete (fs.js:95:15)
56 verbose cwd /Users/wfp
57 error Darwin 14.1.1
58 error argv "node" "/usr/local/bin/npm" "install" "http-server" "-g"
59 error node v0.12.2
60 error npm v2.7.4
61 error path /usr/local/lib/node_modules/http-server
62 error code EACCES
63 error errno -13
64 error Error: EACCES, mkdir '/usr/local/lib/node_modules/http-server'
64 error at Error (native)
64 error { [Error: EACCES, mkdir '/usr/local/lib/node_modules/http-server']
64 error errno: -13,
64 error code: 'EACCES',
64 error path: '/usr/local/lib/node_modules/http-server',
64 error fstream_type: 'Directory',
64 error fstream_path: '/usr/local/lib/node_modules/http-server',
64 error fstream_class: 'DirWriter',
64 error fstream_stack:
64 error [ '/usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:36:23',
64 error '/usr/local/lib/node_modules/npm/node_modules/mkdirp/index.js:46:53',
64 error 'FSReqWrap.oncomplete (fs.js:95:15)' ] }
65 error Please try running this command again as root/Administrator.
66 verbose exit [ -13, true ]
67 verbose unbuild lib/node_modules/http-server
68 silly gentlyRm /usr/local/lib/node_modules/http-server is being purged from base /usr/local
69 verbose gentlyRm don't care about contents; nuking /usr/local/lib/node_modules/http-server
谁能帮我分析一下，到底是哪里出错了？
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
I found the answer, I have to use the sudo command
Everything with "-g" (global installation) must use the sudo command and enter a password.