AttributeError: 'Tensor' object has no attribute '_keras_history'

Question

I looked for all the \"\'Tensor\' object has no attribute ***\" but none seems related to Keras (except for TensorFlow: AttributeError: 'Tensor' object has no attrib

Answer 1

Try this:

def make_gan(GAN_in, model1, model2, model3):
    model1_out = model1(GAN_in)
    model1_out = Lambda(lambda x: K.round(x), output_shape=...)(model1_out)
    model2_out = model2([GAN_in, model1_out])
    GAN_out = model3(model2_out)
    GAN = Model(GAN_in, GAN_out)
    GAN.compile(loss=loss, optimizer=model1.optimizer, metrics=['binary_accuracy'])
    return GAN