File "<ipython-input-8-ad15df69948e>", line 5, in <module>
    cv_results = model_selection.cross_val_score(model, X_train, Y_train, cv=kfold, scoring=scoring)

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\model_selection\_validation.py", line 342, in cross_val_score
    pre_dispatch=pre_dispatch)

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\model_selection\_validation.py", line 206, in cross_validate
    for train, test in cv.split(X, y, groups))

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py", line 779, in __call__
    while self.dispatch_one_batch(iterator):

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py", line 625, in dispatch_one_batch
    self._dispatch(tasks)

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py", line 588, in _dispatch
    job = self._backend.apply_async(batch, callback=cb)

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\externals\joblib\_parallel_backends.py", line 111, in apply_async
    result = ImmediateResult(func)

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\externals\joblib\_parallel_backends.py", line 332, in __init__
    self.results = batch()

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py", line 131, in __call__
    return [func(*args, **kwargs) for func, args, kwargs in self.items]

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\externals\joblib\parallel.py", line 131, in <listcomp>
    return [func(*args, **kwargs) for func, args, kwargs in self.items]

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\model_selection\_validation.py", line 458, in _fit_and_score
    estimator.fit(X_train, y_train, **fit_params)

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\linear_model\logistic.py", line 1217, in fit
    check_classification_targets(y)

  File "C:\Users\bm\Anaconda3\lib\site-packages\sklearn\utils\multiclass.py", line 172, in check_classification_targets
    raise ValueError("Unknown label type: %r" % y_type)

ValueError: Unknown label type: 'unknown'