Traceback (most recent call last):



 "<ipython-input-20-9c3ba798ac1a>", line 1, in <module>

tuner.fit({'train': s3_train_data, 'test': s3_val_data})



 "/usr/local/lib/python2.7/dist-packages/sagemaker/tuner.py", line 144, in fit

self.estimator._prepare_for_training(job_name)



 "/usr/local/lib/python2.7/dist-packages/sagemaker/amazon/amazon_estimator.py", line 117, in _prepare_for_training

feature_dim = records.feature_dim

AttributeError: 'NoneType' object has no attribute 'feature_dim'

Traceback (most recent call last):


 "/home/hejia/Projects/garage/tests/test_algos.py", line 96, in test_polopt_algo

policy = policy_cls(env_spec=env.spec, )


 "/home/hejia/Projects/garage/garage/policies/gaussian_gru_policy.py", line 40, in __init__

obs_dim = env_spec.observation_space.flat_dim +\
AttributeError: 'NoneType' object has no attribute 'observation_space'
