ai-agents-vector-store-persist-faissvectorstore-from-persist-dir-fails-with-file--ed21d9e5

THEN Rename the persisted file from 'default__vector_store.json' to 'vector_store.json' in the storage directory, or specify the correct path to 'default__vector_store.json' when calling from_persist_dir.

# After calling index.storage_context.persist(), rename the file:
import os
os.rename('./storage/default__vector_store.json', './storage/vector_store.json')
# Then load:
vector_store = FaissVectorStore.from_persist_dir('./storage')