ValueError: None values not supported

[sneha-rudra]

How to fix this error? I am running this on CPU

Traceback (most recent call last):
File "main/demo.py", line 123, in
tf.app.run()
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/platform/app.py", line 44, in run
_sys.exit(main(_sys.argv[:1] + flags_passthrough))
File "main/demo.py", line 68, in main
bbox_pred, cls_pred, cls_prob = model.model(input_image)
File "/Users/user1/Desktop/TextDetectionInImages/text-detection-ctpn/nets/model_train.py", line 72, in model
lstm_output = Bilstm(rpn_conv, 512, 128, 512, scope_name='BiLSTM')
File "/Users/user1/Desktop/TextDetectionInImages/text-detection-ctpn/nets/model_train.py", line 33, in Bilstm
lstm_out, last_state = tf.nn.bidirectional_dynamic_rnn(lstm_fw_cell, lstm_bw_cell, net, dtype=tf.float32)
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/ops/rnn.py", line 363, in bidirectional_dynamic_rnn
seq_dim=time_dim, batch_dim=batch_dim)
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/ops/array_ops.py", line 2346, in reverse_sequence
name=name)
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/ops/gen_array_ops.py", line 2776, in reverse_sequence
batch_dim=batch_dim, name=name)
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/framework/op_def_library.py", line 504, in apply_op
values, as_ref=input_arg.is_ref).dtype.name
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/framework/ops.py", line 716, in internal_convert_to_tensor
ret = conversion_func(value, dtype=dtype, name=name, as_ref=as_ref)
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/framework/constant_op.py", line 176, in _constant_tensor_conversion_function
return constant(v, dtype=dtype, name=name)
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/framework/constant_op.py", line 165, in constant
tensor_util.make_tensor_proto(value, dtype=dtype, shape=shape, verify_shape=verify_shape))
File "/Users/user1/Desktop/TextDetectionInImages/venv/lib/python2.7/site-packages/tensorflow/python/framework/tensor_util.py", line 360, in make_tensor_proto
raise ValueError("None values not supported.")
ValueError: None values not supported.

[zjjhuihui]

I have the same question for answers