我在github上download了一个项目,在安装npm install时却安装不了
Error: tunneling socket could not be established, cause=getaddrinfo ENOTFOUND ... ...:80
报了这个错误
npm ERR! Windows_NT 10.0.14393
npm ERR! argv "D:Program Filesnodejsnode.exe" "D:Program Filesnodejsnode_modulesnpmbinnpm-cli.js" "install"
npm ERR! node v6.10.1
npm ERR! npm v3.10.10
npm ERR! code ECONNRESET
npm ERR! network tunneling socket could not be established, cause=getaddrinfo ENOTFOUND ... ...:80
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 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'
请问该怎么解决呢