I kept reporting errors when installing the dependency package today

$ npm install
npm ERR! Windows_NT 10.0.14393
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\                 node_modules\\npm\\bin\\npm-cli.js" "install"
npm ERR! node v6.10.2
npm ERR! npm  v3.10.10
npm ERR! code ENOTFOUND
npm ERR! errno ENOTFOUND
npm ERR! syscall getaddrinfo

npm ERR! network getaddrinfo ENOTFOUND registry.npm.taobao.or registry.npm.taoba                 o.or:443
npm ERR! network This is most likely not a problem with npm itself
npm ERR! network and is related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settin                 gs.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! Please include the following file with any support request:
npm ERR!     D:\nurdun\dva-cli\npm-debug.log

I used to replace the registry of NPM with the image of Taobao in China, so at first I thought that the error reporting had nothing to do with the link. Later, I looked at the relevant blogs on the Internet and said that it would be OK to change to cnpm. I also tried it and succeeded. Although I don’t particularly understand the mystery, I have also got a solution to the problem

The following three methods are OK

1. Use the config command

    
npm config set registry http://registry.cnpmjs.org
npm info underscore （If the above configuration is correct this command will have the string response）

2. Command line assignment

npm --registry http://registry.cnpmjs.org info underscore

3. Editing  ~/.npmrc   Add the following

registry = http://registry.cnpmjs.org

Results

 E:\study\angular-phonecat>npm config set registry http://registry.cnpmjs.org

E:\study\angular-phonecat>npm install
npm WARN package.json [email protected] No README data

> [email protected] postinstall E:\study\angular-phonecat
> bower install

bower angular-resource#1.3.x not-cached Git://github.com/angular/bower-angular-resource.git#1.3.x
bower angular-resource#1.3.x resolve git://github.com/angular/bower-angular-resource.git#1.3.x
bower angular#1.3.x cached git://github.com/angular/bower-angular.git#1.3.14
bower angular#1.3.x validate 1.3.14 against git://github.com/angular/bower-angular.git#1.3.x
bower bootstrap#~3.1.1 cached git://github.com/twbs/bootstrap.git#3.1.1
bower bootstrap#~3.1.1 validate 3.1.1 against git://github.com/twbs/bootstrap.git#~3.1.1
bower angular-animate#1.3.x not-cached git://github.com/angular/bower-angular-animate.git#1.3.x
bower angular-animate#1.3.x resolve git://github.com/angular/bower-angular-animate.git#1.3.x
bower angular-mocks#1.3.x cached git://github.com/angular/bower-angular-mocks.git#1.3.14
bower angular-mocks#1.3.x validate 1.3.14 against git://github.com/angular/bower-angular-mocks.git#1.3.x
bower jQuery#~2.1.1 cached git://github.com/jquery/jquery.git#2.1.3
bower jquery#~2.1.1 validate 2.1.3 against git://github.com/jquery/jquery.git#~2.1.1
bower angular-route#1.3.x not-cached git://github.com/angular/bower-angular-route.git#1.3.x
bower angular-route#1.3.x resolve git://github.com/angular/bower-angular-route.git#1.3.x
bower angular-resource#1.3.x download https://github.com/angular/bower-angular-resource/archive/v1.3.14.tar.gz
bower angular-animate#1.3.x download https://github.com/angular/bower-angular-animate/archive/v1.3.14.tar.gz
bower angular-route#1.3.x download https://github.com/angular/bower-angular-route/archive/v1.3.14.tar.gz
bower angular-resource#1.3.x extract archive.tar.gz
bower angular-resource#1.3.x resolved git://github.com/angular/bower-angular-resource.git#1.3.14
bower angular-animate#1.3.x extract archive.tar.gz
bower angular-animate#1.3.x resolved git://github.com/angular/bower-angular-animate.git#1.3.14
bower angular-route#1.3.x extract archive.tar.gz
bower angular-route#1.3.x resolved git://github.com/angular/bower-angular-route.git#1.3.14
bower angular-mocks#1.3.x install angular-mocks#1.3.14
bower angular#1.3.x install angular#1.3.14
bower jquery#~2.1.1 install jquery#2.1.3
bower bootstrap#~3.1.1 install bootstrap#3.1.1
bower angular-resource#1.3.x install angular-resource#1.3.14
bower angular-animate#1.3.x install angular-animate#1.3.14
bower angular-route#1.3.x install angular-route#1.3.14

angular-mocks#1.3.14 app\bower_components\angular-mocks
└── angular#1.3.14

angular#1.3.14 app\bower_components\angular

jquery#2.1.3 app\bower_components\jquery

bootstrap#3.1.1 app\bower_components\bootstrap
└── jquery#2.1.3

angular-resource#1.3.14 app\bower_components\angular-resource
└── angular#1.3.14

angular-animate#1.3.14 app\bower_components\angular-animate
└── angular#1.3.14

angular-route#1.3.14 app\bower_components\angular-route
└── angular#1.3.14

E:\study\angular-phonecat>