A Concatenate layer requires inputs with matching shapes except for the concat axis. Got inputs shapes: [(None, None, 2), (None, 4420, 4)]

[fengyanWang]

你好，我这边调用你的convert_tensorflow.py脚本，对工程中预训练模型进行转换，出现以下错误，log打出如下：
Traceback (most recent call last):
File "/home/wfy/project/python_project/face/ultra_face/tf/convert_tensorflow.py", line 37, in
main()
File "/home/wfy/project/python_project/face/ultra_face/tf/convert_tensorflow.py", line 23, in main
model = create_slim_net(input_shape, base_channel, num_classes)
File "/home/wfy/project/python_project/face/ultra_face/tf/model/slim_320.py", line 64, in create_slim_net
center_variance, size_variance)
File "/home/wfy/project/python_project/face/ultra_face/tf/backend/utils.py", line 22, in post_processing
result = tf.keras.layers.Concatenate(axis=-1)([cls, loc])
File "/home/wfy/.conda/envs/wfy_torch/lib/python3.6/site-packages/tensorflow/python/keras/engine/base_layer.py", line 538, in call
self._maybe_build(inputs)
File "/home/wfy/.conda/envs/wfy_torch/lib/python3.6/site-packages/tensorflow/python/keras/engine/base_layer.py", line 1603, in _maybe_build
self.build(input_shapes)
File "/home/wfy/.conda/envs/wfy_torch/lib/python3.6/site-packages/tensorflow/python/keras/utils/tf_utils.py", line 151, in wrapper
output_shape = fn(instance, input_shape)
File "/home/wfy/.conda/envs/wfy_torch/lib/python3.6/site-packages/tensorflow/python/keras/layers/merge.py", line 392, in build
'Got inputs shapes: %s' % (input_shape))
ValueError: A Concatenate layer requires inputs with matching shapes except for the concat axis. Got inputs shapes: [(None, None, 2), (None, 4420, 4)]

使用的tf版本是1.13的，通过debug定位到是utils.py脚本中的result = tf.keras.layers.Concatenate(axis=-1)([cls, loc])出错

期盼解答，谢谢！