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ValueError: This model has not yet been built. Build the model first by calling
build()or by calling the model on a batch of data.
This model has not yet been built. Build the model first by calling build()
#加上这句 model.build(input_shape) # `input_shape` is the shape of the input data # e.g. input_shape = (None, 32, 32, 3) model.summary()