I keep getting an error on npm install with the new Theme tools:

npm ERR! code EEXIST

npm ERR! path C:\Program Files\nodejs\node_modules\gulp-cli\bin\gulp.js

npm ERR! dest C:\Program Files\nodejs\gulp

npm ERR! EEXIST: file already exists, cmd shim 'C:\Program Files\nodejs\node_modules\gulp-cli\bin\gulp.js' -> 'C:\Program Files\nodejs\gulp'

npm ERR! File exists: C:\Program Files\nodejs\gulp

npm ERR! Remove the existing file and try again, or run npm

npm ERR! with --force to overwrite files recklessly.