if gyp error happened, try below steps to fix the problem.
firstly make sure nvm-windows version, 1.1.0 is not supported to retrieve node version list which new version nvm-windows will get from node offical. https://nodejs.org/en/download/releases/ So upgrade firstly and see work or not (from 1.1.0 to 1.16 for me)
install node-gyp (https://github.com/nodejs/node-gyp#installation)
install npm install --global --production windows-build-tools
set python path npm config set python C:/Users/user__/.windows-build-tools/python27/python.exe
http://github.com - automatic! [GitHub