一、解决被墙的问题
方法1：设置代理
npm config set proxy=http://127.0.0.1:6152
npm config set https_proxy=http://127.0.0.1:6152
查看刚刚设置的代理
npm config list
删除刚刚配置的代理
npm config delete proxy
npm config delete proxy
方法2、安装nrm切换源
npm install -g nrm
nrm use cnpm 则切换成了cnpm的源
方法3、安装cnpm
npm install -g cnpm
使用cnpm install xxx进行安装
二、安装angular-cli
安装最新版本的cli
npm install -g @angular/cli@latest
查看版本
ng -v
我在这里安装的时候没有报错，在运行此命令的时候报了个错，如下：
Cannot read property 'set' of null
TypeError: Cannot read property 'set' of null
at GeneratedSchemaClass.$$alias (/usr/local/lib/node_modules/@angular/cli/node_modules/@ngtools/json-schema/src/schema-class-factory.js:69:33)
at CliConfig.alias (/usr/local/lib/node_modules/@angular/cli/models/config/config.js:41:29)
at Function.CliConfig.fromProject (/usr/local/lib/node_modules/@angular/cli/models/config.js:65:23)
at Object. (/usr/local/lib/node_modules/@angular/cli/commands/serve.js:6:33)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at Class.includedCommands (/usr/local/lib/node_modules/@angular/cli/addon/index.js:23:16)
at /usr/local/lib/node_modules/@angular/cli/ember-cli/lib/models/project.js:316:61
at Array.forEach (native)
at Project.addonCommands (/usr/local/lib/node_modules/@angular/cli/ember-cli/lib/models/project.js:315:15)
at Project.eachAddonCommand (/usr/local/lib/node_modules/@angular/cli/ember-cli/lib/models/project.js:350:30)
at module.exports (/usr/local/lib/node_modules/@angular/cli/ember-cli/lib/cli/lookup-command.js:33:13)
at CLI. (/usr/local/lib/node_modules/@angular/cli/ember-cli/lib/cli/cli.js:42:26)
at tryCatch (/usr/local/lib/node_modules/@angular/cli/node_modules/rsvp/dist/rsvp.js:538:12)
at invokeCallback (/usr/local/lib/node_modules/@angular/cli/node_modules/rsvp/dist/rsvp.js:553:13)
at publish (/usr/local/lib/node_modules/@angular/cli/node_modules/rsvp/dist/rsvp.js:521:7)
at flush (/usr/local/lib/node_modules/@angular/cli/node_modules/rsvp/dist/rsvp.js:2373:5)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)
原因：我是在一个已经通过上个版本angular-cli生成的项目里运行这个的，坑啊，坑了我好久
三、升级angular-cli
npm uninstall -g @angular/cli
npm cache clean
npm install -g @angular/cli@latest
四、将ng设置成使用cnpm
ng set --global packageManager=cnpm
