updated to 4.0.1 and creating a new drools project. Any .drl file (and also rule flows) shows errors with this info on problems tab
on eclipse:
org/mvel/integration/VariableResolverFactory

no more info, actualy I can run the rules (from the Sample.drl) but it shows the problem.

I tried changing libraries and jdt dependencies, but not succes... what can it be?...anyone has this problem too?

Thanks.
                                                                        
Felipe Piccolini M.
felipe.piccolini@bluesoft.cl