python

FAISS Index Dimension Mismatch

faiss.*IndexError.*dimension

Fixes

1.Verify embedding dimension matches index dimension at creation
2.Rebuild index with correct dimension: faiss.IndexFlatL2(dim)
3.Check embedding model output size matches existing index

langchainfaissdimension

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