Ttn installation error

hi can you please help me in resolving this error

:\Users\shubh.node-red>npm install node-red-contrib-ttn
npm ERR! code ENOENT
npm ERR! syscall spawn git
npm ERR! path git
npm ERR! errno ENOENT
npm ERR! enoent Error while executing:
npm ERR! enoent undefined ls-remote -h -t https://github.com/thethingsnetwork/api.git
npm ERR! enoent
npm ERR! enoent
npm ERR! enoent spawn git ENOENT
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\shubh\AppData\Roaming\npm-cache_logs\2020-02-15T06_23_41_509Z-debug.log

The error says that you need to install git.