Keras-tuner search function throws Failed to create a NewWriteableFile error

Question

The relatively new keras-tuner module for tensorflow-2 is causing the error \'Failed to create a NewWriteableFile\'. The tuner.search function is working, it is only after

Answer 1

In my case, the path exceeds the maximum length of path in windows because the length of generated path by Keras Turner is about 170. After I make my folder shorter, it works normally.

Answer 2

I had the similas problem while using kerastuner in Windows and I've solved it:

1. The first issue is that the path to the log directory may be too long. I had to reduced it.

2. The second problem is that python (or tf) doens't work in Windows with mixed slashes. But kerastuner forms the path with backslashes. So I should provide the path with backslashes. I've done this with os.path.normpath() method:

tuner=RandomSearch(build_model,objective='val_accuracy',max_trials=10,directory=os.path.normpath('C:/'))
tuner.search(x_train,y_train,batch_size=256,epochs=30,validation_split=0.2,verbose=1)    

Now I don't receive this error.

Answer 3

The problem it would appear is a Windows issue. Running the same code in a Linux environment had no issue in this regard.