NYC resident working in NJ

I was a NYC resident working in NJ.  However, my W-2 from my employer only shows NY and NYC source income.  Since the W-2 does not list any NJ income, do I need to file a NJ tax return?  I was working in NJ b/c our work space in NYC was being renovated - so they rented temporary space in NJ for our offices while the renovation was taking place.