CODEWITHSUNDEEP
pythonkeras
Schuyler de Vos
Schuyler de Vos

Reputation: 35

Error with model.compile and model.fit_generator on Keras

Beginner with Keras -- I'm attempting to train a very simple neural network on a series of images from my local folder, but getting an error when I try to use fit_generator.

From

model.fit_generator(train_batches,steps_per_epoch=33, validation_data=valid_batches,validation_steps=50,epochs=10,verbose=2)`

I get the error 

RuntimeError: You must compile your model before using it.

despite the fact that I compile the model in the line immediately about it with 

model.compile(Adam(0.01),loss="categorical_crossentropy",metrics=["accuracy"])

which runs without errors. (see pictures).

Image of error, Image of generator,

Upvotes: 1

Views: 1145

Answers (2)

jz87
jz87

Reputation: 9617

I ran into the same issue. There is a bug: https://github.com/tensorflow/tensorflow/issues/18287

Unfortunately the fix is not yet released.

Upvotes: 1

Kota Mori
Kota Mori

Reputation: 6740

This can be a rare case where pictures are more useful than code sample.

The image says, the compile cell got number [206], and fit cell is [210]. In between them, you have recreated the model at [209], which deletes the previously compiled model and creates a new one.

I think it will run (unless there is another bug) if you execute the cells from top to bottom again.

Upvotes: 3

Related Questions