Unity 5 Light Problem

I recently upgraded to Unity 5 and inported a project from Unity 4.5. The project imported great but here is my problem, the lights don`t show … i mean in the editor the light shows and behaves normal but in play mode nothing, no lighting at all… Any idea on wath the problem would be ?

If you are part of the beta list for Unity 5, you’ll know to use the beta list to discuss issues.