Training with CPA error help needed



I have been using random forest classifier to classify images as positive or negative. On several data sets I have gotten the error below when training, hence preventing me from training. It is odd because sometimes I will train with 5 rules and it works but then when I go to train with 10 rules it gives me the error message below. Any help would be greatly appreciated


Hmm, that’s very odd. Do you find it always happens under certain situations? Is there a way you can share the data, properties file, and training set so that we could take a look?