Tune_T5_WikiHow-Github files trainer fitting throws Exception

[KennyNg-19]

Hi,

When I run '' in Tune_T5_WikiHow-Github.ipynb, an exception is thrown but I cannot find a related solution online,

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MisconfigurationException Traceback (most recent call last) in () ----> 1 trainer.fit(model)

3 frames /usr/local/lib/python3.7/dist-packages/pytorch_lightning/trainer/configuration_validator.py in __verify_train_loop_configuration(self, model) 81 if (has_overriden_optimization_functions) and going_to_accumulate_grad_batches and automatic_optimization: 82 raise MisconfigurationException( -> 83 'When overriding LightningModule optimizer_step or optimizer_zero_grad,' 84 ' accumulate_grad_batches in Trainer should be 1.' 85 ' It ensures optimizer_step or optimizer_zero_grad are called on every batch.'

MisconfigurationException: When overriding LightningModule optimizer_step or optimizer_zero_grad, accumulate_grad_batches in Trainer should be 1. It ensures optimizer_step or optimizer_zero_grad are called on every batch.

Anyone could help, please?