Node-red-contrib-ttn wont install

When i whant to install the node-red-contrib-ttn library bye the pallet i get the an error.
It seems there is now library at this path?

npm ERR! Error while executing:
npm ERR! undefined ls-remote -h -t https://github.com/thethingsnetwork/api.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\878429\AppData\Roaming\npm-cache_logs\2018-10-01T13_17_54_087Z-debug.log

1 Oct 15:17:54 - [warn] ------------------------------------------

So do you have the Git client installed? If so, what does git --version show?