npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules/chokidar/node_modules/fsevents):npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.1: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})npm WARN angular-material@1.1.3 requires a peer of angular@>=1.3 <1.6 but none was installed.npm WARN angular-material@1.1.3 requires a peer of angular-animate@>=1.3 <1.6 but none was installed.npm WARN angular-material@1.1.3 requires a peer of angular-aria@>=1.3 <1.6 but none was installed.npm ERR! Linux 3.16.0-4-amd64npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install"npm ERR! node v7.9.0npm ERR! npm v4.2.0npm ERR! code ELIFECYCLEnpm ERR! errno 1npm ERR! bcrypt@1.0.2 install: `node-pre-gyp install --fallback-to-build`npm ERR! Exit status 1npm ERR!npm ERR! Failed at the bcrypt@1.0.2 install script 'node-pre-gyp install --fallback-to-build'.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 bcrypt package,npm ERR! not with npm itself.npm ERR! Tell the author that this fails on your system:npm ERR! node-pre-gyp install --fallback-to-buildnpm ERR! You can get information on how to open an issue for this project with:npm ERR! npm bugs bcryptnpm ERR! Or if that isn't available, you can get their info via:npm ERR! npm owner ls bcryptnpm ERR! There is likely additional logging output above.npm ERR! Please include the following file with any support request:npm ERR! /root/.npm/_logs/2017-05-02T19_47_18_807Z-debug.log