Access of undefined property managers in package com.jivesoftware.spark


I am using Sparkweb as a chhating widget in my app.

Suddenly, I started getting this error, and I saw my SparkWebCommonComponent.swc is gone.

I am not even able to compile a new swc, I have a backup of my code, but not the current SWC.

It seems my one week effort is gone.

Can someone pls help?

Why cant I recompile the swc?

Thanks Much.