tensorflow2.0:ValueError: Operands could not be broadcast together with shapes_keras 'together with shapes ' + str(shape1) + ' '

Traceback (most recent call last):
  File "F:/sosoon/PaddlePorject/tf2/CIRFA100resnet.py", line 134, in <module>
    model.build(input_shape=(None, 32, 32, 3))
  File "D:\setup\Anaconda\envs\paddle\lib\site-packages\tensorflow_core\python\keras\engine\network.py", line 673, in build
    self.call(x, **kwargs)
  File "F:/sosoon/PaddlePorject/tf2/CIRFA100resnet.py", line 65, in call
    x = self.layer2(x)
  File "D:\setup\Anaconda\envs\paddle\lib\site-packages\keras\backend\tensorflow_backend.py", line 75, in symbolic_fn_wrapper
    return func(*args, **kwargs)
  File "D:\setup\Anaconda\envs\paddle\lib\site-packages\keras\engine\base_layer.py", line 463, in __call__
    self.build(unpack_singleton(input_shapes))
  File "D:\setup\Anaconda\envs\paddle\lib\site-packages\keras\engine\sequential.py", line 222, in build
    x = layer(x)
  File "D:\setup\Anaconda\envs\paddle\lib\site-packages\keras\backend\tensorfl