Traceback (most recent call last):
  File "DQN-gym-train.py", line 288, in <module>
    QueueInputTrainer(config).train()
  File "../tensorpack/train/base.py", line 54, in train
    self.setup()
  File "../tensorpack/train/base.py", line 100, in setup
    self._setup()
  File "../tensorpack/train/queue.py", line 116, in _setup
    summary_moving_average(), name='train_op')
  File "../tensorpack/tfutils/summary.py", line 120, in summary_moving_average
    avg_maintain_op = averager.apply(tensors)
  File "/home/raghu/workspace/virtual-envs/blank/local/lib/python2.7/site-packages/tensorflow/python/training/moving_averages.py", line 391, in apply
    self._averages[var], var, decay, zero_debias=zero_debias))
  File "/home/raghu/workspace/virtual-envs/blank/local/lib/python2.7/site-packages/tensorflow/python/training/moving_averages.py", line 70, in assign_moving_average
    update_delta = _zero_debias(variable, value, decay)
  File "/home/raghu/workspace/virtual-envs/blank/local/lib/python2.7/site-packages/tensorflow/python/training/moving_averages.py", line 177, in _zero_debias
    trainable=False)
  File "/home/raghu/workspace/virtual-envs/blank/local/lib/python2.7/site-packages/tensorflow/python/ops/variable_scope.py", line 1024, in get_variable
    custom_getter=custom_getter)
  File "/home/raghu/workspace/virtual-envs/blank/local/lib/python2.7/site-packages/tensorflow/python/ops/variable_scope.py", line 850, in get_variable
    custom_getter=custom_getter)
  File "/home/raghu/workspace/virtual-envs/blank/local/lib/python2.7/site-packages/tensorflow/python/ops/variable_scope.py", line 346, in get_variable
    validate_shape=validate_shape)
  File "/home/raghu/workspace/virtual-envs/blank/local/lib/python2.7/site-packages/tensorflow/python/ops/variable_scope.py", line 331, in _true_getter
    caching_device=caching_device, validate_shape=validate_shape)
  File "/home/raghu/workspace/virtual-envs/blank/local/lib/python2.7/site-packages/tensorflow/python/ops/variable_scope.py", line 650, in _get_single_variable
    "VarScope?" % name)
ValueError: Variable input_queue_size/EMA/biased does not exist, or was not created with tf.get_variable(). Did you mean to set reuse=None in VarScope?