Error When Fitting Model_4 NLP SkimLit

[supermarios77]

I get an error while fitting model_4:

Epoch 1/3
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
[<ipython-input-96-1afb5fefb082>](https://localhost:8080/#) in <cell line: 3>()
      1 # Fit the model on tokens and chars
      2 
----> 3 history_4 = model_4.fit(train_char_token_dataset, # train on dataset of token and characters
      4                         steps_per_epoch=int(0.1 * len(train_char_token_dataset)),
      5                         epochs=3,

1 frames
[/usr/local/lib/python3.10/dist-packages/tensorflow/python/eager/polymorphic_function/polymorphic_function.py](https://localhost:8080/#) in _call(self, *args, **kwds)
    855       # In this case we have created variables on the first call, so we run the
    856       # defunned version which is guaranteed to never create variables.
--> 857       return self._no_variable_creation_fn(*args, **kwds)  # pylint: disable=not-callable
    858     elif self._variable_creation_fn is not None:
    859       # Release the lock early so that multiple threads can perform the call

TypeError: 'NoneType' object is not callable

My code:

# Fit the model on tokens and chars

history_4 = model_4.fit(train_char_token_dataset, # train on dataset of token and characters
                        steps_per_epoch=int(0.1 * len(train_char_token_dataset)),
                        epochs=3,
                        validation_data=val_char_token_dataset,
                        validation_steps=int(0.1 * len(val_char_token_dataset)))
     

[supermarios77]

I ran the code today and it surprisingly worked though, if anyone could explain why it happened that would be great!