npm error

npm error

npm ERR! Darwin 15.5.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "build-sync"
npm ERR! node v6.1.0
npm ERR! npm  v3.8.6
npm ERR! code ELIFECYCLE
npm ERR! widgets-libros@1.0.0 build-sync: `npm run bundle-css && npm run build-js && npm run build-js-dependencies && npm run sync-repos && npm run bundle-css-XXXXXXXXXXXXX`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the widgets-libros@1.0.0 build-sync script 'npm run bundle-css && npm run build-js && npm run build-js-dependencies && npm run sync-repos && npm run bundle-css-XXXXXXXXXXXXX'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the widgets-libros package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     npm run bundle-css && npm run build-js && npm run build-js-dependencies && npm run sync-repos && npm run bundle-css-XXXXXXXXXXXXX
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs widgets-libros
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls widgets-libros
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /Volumes/Data/Projects/Github/widgets-libros/npm-debug.log