Couldn't instantiate ChainedCleaner

[enricopal]

I've tried the genetic algorithm to automatically configure Duke and I've obtained a genetic_config.xml file, in the passive learning mode, since I have a gold standard. What happens though when I try to run Duke with the genetic_config.xml file is that I get the error: "ERROR: Couldn't instantiate class no.priv.garshol.duke.cleaners.ChainedCleaner: java.lang.InstantiationException: no.priv.garshol.duke.cleaners.ChainedCleaner" This happens because in my genetic_config.xml ChainedCleaner has been chosen as the best cleaner for a certain property by the genetic algorithm. To the best of my understanding though, ChainedCleaner should be only meant for internal use, i.e. for combining a set of cleaners, and not to be set explicitly as the cleaner of a given property. Is there something wrong with my understanding here or is it a bug of the genetic algorithm?