錯誤資訊如下：

npm ERR! code ECONNRESET
npm ERR! errno ECONNRESET
npm ERR! network request to https://registry.npmjs.org/npm failed, reason: socket hang up
npm ERR! network This is a problem related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
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! A complete log of this run can be found in:
npm ERR!     /home/itgoyo/.npm/_logs/2017-11-13T02_02_59_617Z-debug.log

解決方法：

npm config delete
 
 proxy

npm -g install npm@5.5.1