error message from Python interpreter

Question

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Caught exception while executing function: Traceback (most recent call last):
File "C:\server\invokepy.py", line 199, in batch
odfs = mod.azureml_main(*idfs)
File "C:\temp\23f7e85af564401ea159d96ce2d4d38b.py", line 23, in azureml_main
model = pickle.load(open(".\Script Bundle\model.pkl", 'rb'))
ImportError: No module named 'sklearn.tree._classes'
Process returned with non-zero exit code 1

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