installing error

[smatiush]

`npm ERR! Linux 4.4.0-45-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "start"
npm ERR! node v4.2.6
npm ERR! npm  v3.5.2
npm ERR! code ELIFECYCLE
npm ERR! cryptocurrency-arbitrage@1.4.0 start: node main
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the cryptocurrency-arbitrage@1.4.0 start script 'node main'.
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 cryptocurrency-arbitrage package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node main
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs cryptocurrency-arbitrage
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls cryptocurrency-arbitrage
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/coin/cryptocurrency-arbitrage/npm-debug.log
`

i have 16.04 ubuntu version the installation give me this npm WARN optional Skipping failed optional dependency /chokidar/fsevents: npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.1.2 npm WARN cryptocurrency-arbitrage@1.4.0 license should be a valid SPDX license expression

[kroitor]

@smatiush you can ignore the failed optional dependency (it's ok for your system). And you might want to upgrade the node v4.x package to modern stable version 8.x+. It looks like your software is outdated. Hope it helps.

[manu354]

This program requires a node.js version of 8+