Gulp watch error : ENOSPC

[Jiedara]

This is not a gulp-oyana specific issue, but it can be mentioned somewhere.

Due to the large set of file manipulated by the watch function, apparently, an overload is possible for Unix based system.

The error show up like this :

Error: watch /var/.../resources/scss/ ENOSPC
    at exports._errnoException (util.js:870:11)
    at FSWatcher.start (fs.js:1234:19)
    at Object.fs.watch (fs.js:1262:11)
    at Gaze._watchDir (/var/www/html/qusto/referrals/node_modules/gaze/lib/gaze.js:289:30)
    at /var/www/html/qusto/referrals/node_modules/gaze/lib/gaze.js:358:10
    at iterate (/var/www/html/qusto/referrals/node_modules/gaze/lib/helper.js:52:5)
    at Object.forEachSeries (/var/www/html/qusto/referrals/node_modules/gaze/lib/helper.js:66:3)
    at Gaze._initWatched (/var/www/html/qusto/referrals/node_modules/gaze/lib/gaze.js:354:10)
    at Gaze.add (/var/www/html/qusto/referrals/node_modules/gaze/lib/gaze.js:177:8)
    at new Gaze (/var/www/html/qusto/referrals/node_modules/gaze/lib/gaze.js:74:10)

It can be solved by running this command :
echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

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