npm install failed

npm ERR! code ENOTFOUND

npm ERR! errno ENOTFOUND

npm ERR! network request to https://registry.npm.taobao.org/@hapi%2fhoek failed, reason: getaddrinfo ENOTFOUND registry.npm.taobao.org

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'