nn_quantizer.py in the ML-CIFAR10 examples returning out of range index error for Caffe LeNet example for MNIST

Hello, I've been working to create a small CNN from MNIST dataset. I've successfully trained the network. However, while converting the model, it breaks at line 232. Any help would be appreciated

Traceback (most recent call last):
  File "nn_quantizer.py", line 614, in <module>
  File "nn_quantizer.py", line 232, in get_graph_connectivity
    current_blob = self.bottom_blob[current_layer][0]
IndexError: list index out of range

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