Uncleared error messages can be really time consuming sometimes.
I was getting Gulp Error: watch ENOSPC, googled and tried different solutions with no success, then finally found a solution at following link:
There is the limit in the number of files that can be watched in a system. We have to increase this number. The below command can be used to increase this number.
echo fs.inotify.max_user_watches=582222 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p