I have created a project using the seam 3 JEE6 maven archetype and life was good. But today, without any modification, it stopped deploying on jboss 6 with this error:

WELD-001408 Unsatisfied dependencies for type [UserTransaction] with qualifiers [@Default] at injection point [[field] @Inject private br.com.ximp.dodger.data.SeedDataImporte0r.tx]]

I guess it probably could not find a producer for UserTransaction, wich should be injected by the container, right?
Do you have any idea on how can i debug this?