Pourquoi je ne peux pas installer le module "body-parse" NodeJS? Il dit que ce n'est pas dans le registre npm

Question

Je suis absolument nouveau dans NodeJS et j'ai le problème suivant. J'utilise NodeJ v6.2.0.

Essayer d'exécuter un programme NodeJS par ce statment:

node index 

J'obtiens le message d'erreur suivant:

C:\Users\Andrea\Documents\WS_vari\REST\URIDemo>node index 
module.js:442 
    throw err; 
    ^

Error: Cannot find module 'body-parser' 
    at Function.Module._resolveFilename (module.js:440:15) 
    at Function.Module._load (module.js:388:25) 
    at Module.require (module.js:468:17) 
    at require (internal/module.js:20:19) 
    at Object.<anonymous> (C:\Users\Andrea\Documents\WS_vari\REST\URIDemo\index.js:6:18) 
    at Module._compile (module.js:541:32) 
    at Object.Module._extensions..js (module.js:550:10) 
    at Module.load (module.js:458:32) 
    at tryModuleLoad (module.js:417:12) 
    at Function.Module._load (module.js:409:3) 

J'ai tryied faire installer ce corps-analyseur module en :

npm install body-parse 

mais en faisant thi s façon dont je suis l'obtention de ce message d'erreur:

C:\Users\Andrea\Documents\WS_vari\REST\URIDemo>npm install body-parse 
npm ERR! Windows_NT 6.3.9600 
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" " 
body-parse" 
npm ERR! node v6.2.0 
npm ERR! npm v3.8.9 
npm ERR! code E404 

npm ERR! 404 Registry returned 404 for GET on https://registry.npmjs.org/body-parse 
npm ERR! 404 
npm ERR! 404 'body-parse' is not in the npm registry. 
npm ERR! 404 You should bug the author to publish it (or use the name yourself!) 
npm ERR! 404 
npm ERR! 404 Note that you can also install from a 
npm ERR! 404 tarball, folder, http url, or git url. 

npm ERR! Please include the following file with any support request: 
npm ERR!  C:\Users\Andrea\Documents\WS_vari\REST\URIDemo\npm-debug.log 

C:\Users\Andrea\Documents\WS_vari\REST\URIDemo> 

Ceci est le contenu de la spécifiée NPM-debug.log fichier journal:

0 info it worked if it ends with ok 
1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe', 
1 verbose cli 'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js', 
1 verbose cli 'install', 
1 verbose cli 'body-parse' ] 
2 info using npm@3.8.9 
3 info using node@v6.2.0 
4 silly loadCurrentTree Starting 
5 silly install loadCurrentTree 
6 silly install readLocalPackageData 
7 silly fetchPackageMetaData body-parse 
8 silly fetchNamedPackageData body-parse 
9 silly mapToRegistry name body-parse 
10 silly mapToRegistry using default registry 
11 silly mapToRegistry registry https://registry.npmjs.org/ 
12 silly mapToRegistry data Result { 
12 silly mapToRegistry raw: 'body-parse', 
12 silly mapToRegistry scope: null, 
12 silly mapToRegistry name: 'body-parse', 
12 silly mapToRegistry rawSpec: '', 
12 silly mapToRegistry spec: 'latest', 
12 silly mapToRegistry type: 'tag' } 
13 silly mapToRegistry uri https://registry.npmjs.org/body-parse 
14 verbose request uri https://registry.npmjs.org/body-parse 
15 verbose request no auth needed 
16 info attempt registry request try #1 at 18:37:02 
17 verbose request id 293a3f738f677ca2 
18 http request GET https://registry.npmjs.org/body-parse 
19 http 404 https://registry.npmjs.org/body-parse 
20 verbose headers { 'content-type': 'application/json', 
20 verbose headers 'cache-control': 'max-age=0', 
20 verbose headers 'content-length': '2', 
20 verbose headers 'accept-ranges': 'bytes', 
20 verbose headers date: 'Mon, 26 Dec 2016 17:38:07 GMT', 
20 verbose headers via: '1.1 varnish', 
20 verbose headers age: '0', 
20 verbose headers connection: 'keep-alive', 
20 verbose headers 'x-served-by': 'cache-fra1247-FRA', 
20 verbose headers 'x-cache': 'MISS', 
20 verbose headers 'x-cache-hits': '0', 
20 verbose headers 'x-timer': 'S1482773886.298464,VS0,VE707', 
20 verbose headers vary: 'Accept-Encoding' } 
21 silly get cb [ 404, 
21 silly get { 'content-type': 'application/json', 
21 silly get  'cache-control': 'max-age=0', 
21 silly get  'content-length': '2', 
21 silly get  'accept-ranges': 'bytes', 
21 silly get  date: 'Mon, 26 Dec 2016 17:38:07 GMT', 
21 silly get  via: '1.1 varnish', 
21 silly get  age: '0', 
21 silly get  connection: 'keep-alive', 
21 silly get  'x-served-by': 'cache-fra1247-FRA', 
21 silly get  'x-cache': 'MISS', 
21 silly get  'x-cache-hits': '0', 
21 silly get  'x-timer': 'S1482773886.298464,VS0,VE707', 
21 silly get  vary: 'Accept-Encoding' } ] 
22 silly fetchPackageMetaData Error: Registry returned 404 for GET on https://registry.npmjs.org/body-parse 
22 silly fetchPackageMetaData  at makeError (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:264:12) 
22 silly fetchPackageMetaData  at CachingRegistryClient.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:242:14) 
22 silly fetchPackageMetaData  at Request._callback (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:172:14) 
22 silly fetchPackageMetaData  at Request.self.callback (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:200:22) 
22 silly fetchPackageMetaData  at emitTwo (events.js:106:13) 
22 silly fetchPackageMetaData  at Request.emit (events.js:191:7) 
22 silly fetchPackageMetaData  at Request.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:1067:10) 
22 silly fetchPackageMetaData  at emitOne (events.js:101:20) 
22 silly fetchPackageMetaData  at Request.emit (events.js:188:7) 
22 silly fetchPackageMetaData  at IncomingMessage.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:988:12) 
22 silly fetchPackageMetaData error for body-parse { Error: Registry returned 404 for GET on https://registry.npmjs.org/body-parse 
22 silly fetchPackageMetaData  at makeError (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:264:12) 
22 silly fetchPackageMetaData  at CachingRegistryClient.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:242:14) 
22 silly fetchPackageMetaData  at Request._callback (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:172:14) 
22 silly fetchPackageMetaData  at Request.self.callback (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:200:22) 
22 silly fetchPackageMetaData  at emitTwo (events.js:106:13) 
22 silly fetchPackageMetaData  at Request.emit (events.js:191:7) 
22 silly fetchPackageMetaData  at Request.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:1067:10) 
22 silly fetchPackageMetaData  at emitOne (events.js:101:20) 
22 silly fetchPackageMetaData  at Request.emit (events.js:188:7) 
22 silly fetchPackageMetaData  at IncomingMessage.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:988:12) pkgid: 'body-parse', statusCode: 404, code: 'E404' } 
23 silly rollbackFailedOptional Starting 
24 silly rollbackFailedOptional Finishing 
25 silly runTopLevelLifecycles Starting 
26 silly runTopLevelLifecycles Finishing 
27 silly install printInstalled 
28 verbose stack Error: Registry returned 404 for GET on https://registry.npmjs.org/body-parse 
28 verbose stack  at makeError (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:264:12) 
28 verbose stack  at CachingRegistryClient.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:242:14) 
28 verbose stack  at Request._callback (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-registry-client\lib\request.js:172:14) 
28 verbose stack  at Request.self.callback (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:200:22) 
28 verbose stack  at emitTwo (events.js:106:13) 
28 verbose stack  at Request.emit (events.js:191:7) 
28 verbose stack  at Request.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:1067:10) 
28 verbose stack  at emitOne (events.js:101:20) 
28 verbose stack  at Request.emit (events.js:188:7) 
28 verbose stack  at IncomingMessage.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\request\request.js:988:12) 
29 verbose statusCode 404 
30 verbose pkgid body-parse 
31 verbose cwd C:\Users\Andrea\Documents\WS_vari\REST\URIDemo 
32 error Windows_NT 6.3.9600 
33 error argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "body-parse" 
34 error node v6.2.0 
35 error npm v3.8.9 
36 error code E404 
37 error 404 Registry returned 404 for GET on https://registry.npmjs.org/body-parse 
38 error 404 
39 error 404 'body-parse' is not in the npm registry. 
40 error 404 You should bug the author to publish it (or use the name yourself!) 
41 error 404 Note that you can also install from a 
42 error 404 tarball, folder, http url, or git url. 
43 verbose exit [ 1, true ] 

Il semble donc qu'il ne peut pas trouver ce body-parse dans le registre npm.

Answer 1

Vous avez erreur faute de frappe dans votre commande npm. Utilisez la commande ci-dessous.

npm install -g body-parser // globally install 
npm install -S body-parser // locally install 

options communes:
[S | --save | -D | --save-dev | O | --save-facultatif] [-E | --save-exact] [--dry-run]

Depuis que vous êtes nouveau bie. Bienvenue sur Node World. Avant cela, vous devez créer package.json pour votre dépendance npm. Utilisez ci-dessous.

npm init // Updated your project and git repo details. 

Dans votre package.json, vous pouvez ajouter l'option principale pour pointer le fichier principal comme ci-dessous.

"main": "createServer.js", 

Si ci-dessus est configuré, vous pouvez appeler directement comme ci-dessous qui pointera vers createServer.js

node . 

WIKI Référence:
https://docs.npmjs.com/files/package.json#main
https://docs.npmjs.com/cli/install

Answer 2

Il est ce qu'on appelle body-parser

Essayez npm i body-parser

https://www.npmjs.com/package/body-parser

Answer 3

utiliser ceci: npm install --save body-parser