Problem

When I was working with a reactjs project on Ubuntu system, I received an error like this:

Error: ENOSPC: System limit for number of file watchers reached

Solution

The reason for this error is the kernel limit with the inotify watchers.

Temporary Solution

sudo sysctl -w fs.inotify.max_user_watches=524288

This works until you reboot your system.

Inorder to persist the fix, Run the following.

echo "fs.inotify.max_user_watches=524288" \
  | sudo tee -a /etc/sysctl.conf