Diet_classifier.py problem

rasa2.0/lib/python3.7/site-packages/rasa/nlu/classifiers/diet_classifier.py:683: VisibleDeprecationWarning: Creating an ndarray from ragged nested sequences (which is a list-or-tuple of lists-or-tuples-or ndarrays with different lengths or shapes) is deprecated. If you meant to do this, you must specify ‘dtype=object’ when creating the ndarray X_dense_sequence = np.array(X_dense_sequence)

how to slove this problem? Is my training data format has problem?

@almighty This is just a deprecation warning. You should be fine. We already have an issue for it and we will try to fix it as soon as possible.