[OWLAPI-developer] NoSuchMEthodException with getEquicalentClasses

[Marcello L. <mar...@gm...>]

Hi again,

my application rises Exception:
Exception in thread "Thread-7" java.lang.NoSuchMethodError:  
org.semanticweb.owl.model.OWLDataFactory.getOWLEquivalentClassesAxiom 
(Lorg/semanticweb/owl/model/OWLDescription;Lorg/semanticweb/owl/model/ 
OWLDescription;)Lorg/semanticweb/owl/model/OWLEquivalentClassesAxiom;
	at  
it.unimi.kmg.oddi.matching.ontology.OWLMatchingOntologyWriter.addLogical 
Axioms(OWLMatchingOntologyWriter.java:1235)
when i try to call GetOWLEquivalent§Classes..
am i doing something wrong? should i import additional libraries?