python

HuggingFace Trainer Missing Dataset

ValueError: Trainer requires a train_dataset or a data_collator

Fixes

1.Pass train_dataset to Trainer constructor
2.Create dataset with datasets.Dataset.from_dict()
3.Verify dataset path and split name are correct

huggingfacetrainerdataset

Related Errors

Asyncio event loop already running

RuntimeError: This event loop is already running

•Use nest_asyncio.apply() to allow nested event loops
•Use asyncio.run_coroutine_threadsafe() instead of asyncio.run()

Coroutine never awaited

RuntimeWarning: coroutine '.*' was never awaited

•Add 'await' before the coroutine call
•Use asyncio.create_task() to schedule the coroutine

Asyncio task was cancelled

asyncio\.CancelledError

•Handle CancelledError in try/except within the task
•Use asyncio.shield() to protect critical sections from cancellation