问题描述：

今天我学vue的插件Nuxt.js的时候，根据官网下载Nuxt的模板，然后cd到项目中，npm run dev的时候报下班的错误

npm run dev

> my-project@1.0.0 dev /Users/zhangxi/Documents/study/demo/vue/nuxtjs/my-project
> nuxt

/Users/zhangxi/Documents/study/demo/vue/nuxtjs/my-project/node_modules/nuxt/lib/core/middleware/nuxt.js:72
      const policies = this.options.render.csp.policies ? {...this.options.render.csp.policies} : null
                                                           ^^^

SyntaxError: Unexpected token ...
    at createScript (vm.js:74:10)
    at Object.runInThisContext (vm.js:116:10)
    at Module._compile (module.js:533:28)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:503:32)
    at tryModuleLoad (module.js:466:12)
    at Function.Module._load (module.js:458:3)
    at Module.require (module.js:513:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/Users/zhangxi/Documents/study/demo/vue/nuxtjs/my-project/node_modules/nuxt/lib/core/renderer.js:19:24)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! my-project@1.0.0 dev: `nuxt`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the my-project@1.0.0 dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/zhangxi/.npm/_logs/2018-07-05T08_57_08_585Z-debug.log

通过科学上网，从github中查询到了这个问题，主要是因为你的node版本过低，需要升级node版本即可

1. Mac升级node

第一步，先查看本机node.js版本：

$ node -v

第二步，清除node.js的cache：

$ sudo npm cache clean -f

第三步，安装 n 工具，这个工具是专门用来管理node.js版本的，别怀疑这个工具的名字，是他是他就是他，他的名字就是 "n"

 $ sudo npm install -g n

第四步，安装最新版本的node.js

$ sudo n stable

第五步，再次查看本机的node.js版本：

 $ node -v

感谢简书ChenME提供的《关于Mac升级Node的快捷方法》

zhangxi@zhangxideMacBook-Air:~/Documents/study/demo/vue/nuxtjs/my-project|
⇒  node -v
v8.1.2
zhangxi@zhangxideMacBook-Air:~/Documents/study/demo/vue/nuxtjs/my-project|
⇒  sudo npm cache clean -f
Password:
npm WARN using --force I sure hope you know what you are doing.
zhangxi@zhangxideMacBook-Air:~/Documents/study/demo/vue/nuxtjs/my-project|
⇒  sudo npm install -g n
/usr/local/bin/n -> /usr/local/lib/node_modules/n/bin/n
+ n@2.1.12
added 1 package from 4 contributors in 6.483s
zhangxi@zhangxideMacBook-Air:~/Documents/study/demo/vue/nuxtjs/my-project|
⇒  sudo n stable

     install : node-v10.6.0
       mkdir : /usr/local/n/versions/node/10.6.0
       fetch : https://nodejs.org/dist/v10.6.0/node-v10.6.0-darwin-x64.tar.gz
######################################################################## 100.0%
   installed : v10.6.0

zhangxi@zhangxideMacBook-Air:~/Documents/study/demo/vue/nuxtjs/my-project|
⇒  node -v
v10.6.0

2. 根据官网下载模板

vue init nuxt-community/starter-template my-project

cd my-project

npm i

npm run dev

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