NodeJS error "EMFILE, too many open files" on Mac OS

For sometime I am having the following error:

Error: EMFILE, too many open files  '/Users/blagus/Gallery/Websites/Nicsware/Pills/resources/core/auth.node.js'
    at Object.fs.openSync (fs.js:427:18)
    at Object.fs.readFileSync (fs.js:284:15)
    at Object.Module._extensions..js (module.js:473:44)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at instController  (/Users/blagus/Gallery/Websites/Nicsware/Pills/engine/mvc.node.js:79:31)
    at init (/Users/blagus/Gallery/Websites/Nicsware/Pills/engine/mvc.node.js:57:8)
    at route (/Users/blagus/Gallery/Websites/Nicsware/Pills/engine/dispatcher.node.js:268:36)

The line of code making the call to this file (mvc.node.js:79) is

    this.currentRoute.class = require( controllerFile )[dispatchClass].bind( this );

(it is a framework I am creating)

As you can see, the file auth.node.js is called by a REQUIRE, so the given solutions with gracefullFS and similar does not fit. Besides, this problem occour MacOS only. In a Ubuntu seems to work just fine.

Any thoughts?

You can solve this problem by increasing the maxfiles limit:

launchctl limit maxfiles 16384 16384 && ulimit -n 16384