问）安装web3js时遇到一些错误。如何克服这个问题？
npm install web3-js
npm WARN deprecated fs-promise@2.0.3: Use mz or fs-extra^3.0 with Promise Support
npm WARN deprecated tar.gz@1.0.7: ⚠️ WARNING ⚠️ tar.gz module has been deprecated and your application is vulnerable. Please use tar module instead: https://npmjs.com/tar
npm ERR! code ENOGIT
npm ERR! No git binary found in $PATH
npm ERR!
npm ERR! Failed using git.
npm ERR! Please check if you have git installed and in your PATH.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\HP\AppData\Roaming\npm-cache\_logs\2018-03-08T17_58_45_678Z-debug.log