load_model() raising ValueError

[jfkirk]

load_model() raising ValueError

[jfkirk]

Reproduced by adding reset_default_graph to the saver test

======================================================================
ERROR: test_save_and_load_model (test.test_tensorrec.TensorRecSavingTestCase)
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Traceback (most recent call last):
  File "/Users/jkirk/dev/tensorrec/test/test_tensorrec.py", line 248, in test_save_and_load_model
    new_model = TensorRec.load_model(directory_path=self.test_dir)
  File "/Users/jkirk/dev/tensorrec/tensorrec/tensorrec.py", line 798, in load_model
    saver = tf.train.Saver()
  File "/Users/jkirk/dev/envs/tensorrec/lib/python3.6/site-packages/tensorflow/python/training/saver.py", line 1239, in __init__
    self.build()
  File "/Users/jkirk/dev/envs/tensorrec/lib/python3.6/site-packages/tensorflow/python/training/saver.py", line 1248, in build
    self._build(self._filename, build_save=True, build_restore=True)
  File "/Users/jkirk/dev/envs/tensorrec/lib/python3.6/site-packages/tensorflow/python/training/saver.py", line 1272, in _build
    raise ValueError("No variables to save")
ValueError: No variables to save