gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:276:23)
gyp ERR! stack     at ChildProcess.emit (events.js:110:17)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:1078:12)
gyp ERR! System Linux 4.2.0-27-generic
gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/ubuntu2/emailio2/node_modules/memwatch
gyp ERR! node -v v0.12.14
gyp ERR! node-gyp -v v3.3.1
gyp ERR! not ok

npm ERR! Linux 4.2.0-27-generic
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install"
npm ERR! node v0.12.14
npm ERR! npm  v2.15.1
npm ERR! code ELIFECYCLE
npm ERR! memwatch@0.2.2 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the memwatch@0.2.2 install script 'node-gyp rebuild'.
npm ERR! This is most likely a problem with the memwatch 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 memwatch
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!
npm ERR!     npm owner ls memwatch
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/ubuntu2/emailio2/npm-debug.log
ubuntu2@ubuntu2-VirtualBox:~/emailio2$ node -v
v0.12.14
ubuntu2@ubuntu2-VirtualBox:~/emailio2$ npm -v
2.15.1