Traceback (most recent call last):


 "train.py", line 610, in <module>

train_test()


 "train.py", line 553, in train_test

fluid.io.save_inference_model(model_dir, data_name_list, [loss, auc_var], pe)


 "/home/kangjianfeng/paddlepaddle/paddle_release_home/python/lib/python2.7/site-packages/paddle/fluid/io.py", line 681, in save_inference_model

main_program = main_program._prune(targets=target_vars)


 "/home/kangjianfeng/paddlepaddle/paddle_release_home/python/lib/python2.7/site-packages/paddle/fluid/framework.py", line 1741, in _prune

"The target variable must have an "
ValueError: The target variable must have an associated operator that generates it.

[WARNING] [2019-04-23 17:03:09,459:EnsembleBuilder(1):digits] Error loading /tmp/autosklearn_parallel_example_tmp/.auto-sklearn/predictions_ensemble/predictions_ensemble_1_19.npy: Traceback (most recent call last):


 "/usr/local/lib/python3.6/dist-packages/autosklearn/ensemble_builder.py", line 316, in read_ensemble_preds

y_ensemble = self._read_np_fn(fp=fp)


 "/usr/local/lib/python3.6/dist-packages/autosklearn/ensemble_builder.py", line 641, in _read_np_fn

predictions = np.load(fp).astype(dtype=np.float32)


 "/usr/local/lib/python3.6/dist-packages/numpy/lib/npyio.py", line 451, in load

raise ValueError("Cannot load file containing pickled data "
ValueError: Cannot load file containing pickled data when allow_pickle=False
