Watcher error

I’m having watcher error while running ionic serve on a brand new project

watch failed: watcher error: 
            Error: watch ...project/src ENOSPC 
dev server running: http://localhost:8100/ 

This is the environment:

ionic info

Your system information:

Cordova CLI: 6.5.0 
Ionic Framework Version: 2.0.1
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.1.0
ios-deploy version: Not installed
ios-sim version: Not installed
OS: Linux 4.4
Node Version: v6.9.5
Xcode version: Not installed

I found that I face this problem when I run Visual Studio Code. I guess VSC may allocate too much resources. How can I solve this issue?