# Tensorflow keras构建模型出现This model has not yet been built. Build the model first by calling

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Tensorflow keras构建模型出现如下问题，

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()

https://stackoverflow.com/questions/55908188/this-model-has-not-yet-been-built-error-on-model-summary