keras-team/keras · error · ValueError

Arguments not recognized: {kwargs}

Error message

Arguments not recognized: {kwargs}

What it means

Error "Arguments not recognized: {kwargs}" thrown in keras-team/keras.

Source

Thrown at keras/src/backend/jax/trainer.py:566

    @traceback_utils.filter_traceback
    def evaluate(
        self,
        x=None,
        y=None,
        batch_size=None,
        verbose="auto",
        sample_weight=None,
        steps=None,
        callbacks=None,
        return_dict=False,
        **kwargs,
    ):
        self._assert_compile_called("evaluate")
        # TODO: respect compiled trainable state
        use_cached_eval_dataset = kwargs.pop("_use_cached_eval_dataset", False)
        if kwargs:
            raise ValueError(f"Arguments not recognized: {kwargs}")

        if use_cached_eval_dataset:
            epoch_iterator = self._eval_epoch_iterator
        else:
            # Create an iterator that yields batches of
            # input/target data.
            epoch_iterator = JAXEpochIterator(
                x=x,
                y=y,
                sample_weight=sample_weight,
                batch_size=batch_size,
                steps_per_epoch=steps,
                shuffle=False,
                steps_per_execution=self.steps_per_execution,
            )

        self._symbolic_build(iterator=epoch_iterator)
        epoch_iterator.reset()

View on GitHub (pinned to 7a34a03db6)

When it happens

Trigger: Thrown at keras/src/backend/jax/trainer.py:566 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of keras-team/keras@7a34a03db6 (2026-08-25). Data as JSON: /api/errors/6c34ddb813979df8. Report an issue: GitHub.