JMRI gets fatal JAVA error building a train - Model Railroader Magazine

I am using the current version of JMRI and I can use most options but after using for three years I can not build trains.  I reset a train and click the build button and get the following JAVA error:

java.lang.NoSuchMethodError: com.fasterxml.jackson.datafind.node.ObjectNode.set(Ljava/lang/String;Lcom/Fasterxml/jackson/databind/JsonNode;)Lcom/fasterxml/jackson/databind/JsonNode;

Any ideas on how to get past this error?

thanks 

Fred