Light Building Without Errors, Need Help

I have been working on my project for some time and just run across an issue I never thought I would encounter. I was attempting to Build my project and when it got down to the lighting part just before Swarm kicks in, the building stops and gives me the error notification that lighting failed. There is no Error message in the Error Log of any type except the normal one that says Lighting needs rebuilt. My question is, how do I go about fixing this issue when I have no clue to what to look for to get it to work again? I have searched online many places and not found any solution to this one. Any tips or advice be grateful. Thanks in advance for the help.