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,

---

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?