Traceback (most recent call last):


 "/home/sathiyakugan/PycharmProjects/internal-apps/apps/support-tools/EscalationApp/IMDBmodified.py", line 213, in <module>

model = buildModel((maxLen,), word_to_vec_map, word_to_index)


 "/home/sathiyakugan/PycharmProjects/internal-apps/apps/support-tools/EscalationApp/IMDBmodified.py", line 206, in buildModel

model = Model(inputs=sentence_indices, outputs=M)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/legacy/interfaces.py", line 91, in wrapper

return func(*args, **kwargs)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/engine/network.py", line 91, in __init__

self._init_graph_network(*args, **kwargs)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/engine/network.py", line 235, in _init_graph_network

self.inputs, self.outputs)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/engine/network.py", line 1412, in _map_graph_network

tensor_index=tensor_index)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/engine/network.py", line 1399, in build_map

node_index, tensor_index)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/engine/network.py", line 1399, in build_map

node_index, tensor_index)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/engine/network.py", line 1399, in build_map

node_index, tensor_index)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/engine/network.py", line 1399, in build_map

node_index, tensor_index)


 "/home/sathiyakugan/PycharmProjects/Python/venv/lib/python3.5/site-packages/keras/engine/network.py", line 1371, in build_map

node = layer._inbound_nodes[node_index]
AttributeError: 'NoneType' object has no attribute '_inbound_nodes' 

`Traceback (most recent call last):


 "train.py", line 43, in prefetch_data

data, ind = sample_data(db, ind, data_aug=data_aug)


 "/media/disk/wudi/CenterNet/sample/coco.py", line 200, in sample_data

return globals()[system_configs.sampling_function](db, k_ind, data_aug, debug)


 "/media/disk/wudi/CenterNet/sample/coco.py", line 100, in kp_detection

image, detections = random_crop(image, detections, rand_scales, input_size, border=border)


 "/media/disk/wudi/CenterNet/sample/utils.py", line 57, in random_crop

image_height, image_width = image.shape[0:2]
AttributeError: 'NoneType' object has no attribute 'shape'`
