build error2

[xsoft]

Hello.
Everything according your examples and tutorial (at VirtualBox from fresh start). Still unable to build.

Tutorial:
https://github.com/zone117x/node-cryptonote-pool#1-downloading--installing
http://prolinuxhub.com/setting-up-your-own-monero-mining-pool-with-node-cryptonote-pool-and-ubuntu-14/
...
or do you have (any) other WORKING tutorial to follow? Thanks.

Log:
log.txt

[xsoft]

npm ERR! [email protected] install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] install script 'node-gyp rebuild'.
npm ERR! This is most likely a problem with the cryptonote-util package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node-gyp rebuild
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs cryptonote-util
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! 
npm ERR!     npm owner ls cryptonote-util
npm ERR! There is likely additional logging output above.