npm install jspdf 404NOT FOUND

[vfmh]

Expected behavior
run fine
Observed behavior
This is error info

npm ERR! code ENOGIT
npm ERR! Error while executing:
npm ERR! undefined ls-remote -h -t ssh://git@github.com/eligrey/FileSaver.js.git
npm ERR!
npm ERR! undefined
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\fangminghong\AppData\Roaming\npm-cache\_logs\2019-03-31T14_56_38_154Z-debug.log

Steps to reproduce
npm install on my production server
Version
node -v 8.12.0
npm -v 6.4.1
I have installed Git and configured environment variables.