python

PyTorch Non-Tensor Grad Requirement

RuntimeError: Only Tensors.*can.*require gradients

Fixes

1.Convert numpy array to tensor with torch.from_numpy()
2.Ensure Variable is replaced with Tensor (deprecated API)
3.Use torch.tensor() with requires_grad=True

pytorchautogradtensor

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