Traceback (most recent call last):


 "train_eval_p2p_nav_ppo.py", line 413, in <module>

tf.app.run()


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/tensorflow/python/platform/app.py", line 40, in run

_run(main=main, argv=argv, flags_parser=_parse_flags_tolerate_undef)


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/absl/app.py", line 300, in run

_run_main(main, args)


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/absl/app.py", line 251, in _run_main

sys.exit(main(argv))


 "train_eval_p2p_nav_ppo.py", line 408, in main

use_rnns=FLAGS.use_rnns)


 "train_eval_p2p_nav_ppo.py", line 341, in train_eval

callback=eval_metrics_callback,


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/tf_agents/metrics/metric_utils.py", line 94, in compute_summaries

results = compute(metrics, environment, policy, num_episodes)


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/tf_agents/metrics/metric_utils.py", line 55, in compute

policy_state = policy.get_initial_state(environment.batch_size)


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/tf_agents/policies/py_policy.py", line 104, in get_initial_state

return self._get_initial_state(batch_size)


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/tf_agents/policies/py_tf_policy.py", line 157, in _get_initial_state

self.initialize(batch_size)


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/tf_agents/policies/py_tf_policy.py", line 104, in initialize

self.session.run(tf.initializers.variables(self._tf_policy.variables()))


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/tensorflow/python/ops/variables.py", line 2834, in variables_initializer

return control_flow_ops.group(*[v.initializer for v in var_list], name=name)


 "/cvgl2/u/chengshu/anaconda3/envs/py35/lib/python3.5/site-packages/tensorflow/python/ops/variables.py", line 2834, in <listcomp>

return control_flow_ops.group(*[v.initializer for v in var_list], name=name)
AttributeError: '_DictWrapper' object has no attribute 'initializer'

Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "/********************/site-packages/better_exceptions/__init__.py", line 49, in <module>

'builtins': __builtins__.keys(),
AttributeError: 'module' object has no attribute 'keys'
