how do actually vector KB works

[isikepalaku]

i want to ask, is every knowledge base must use data to upsert before it going to be knowledge base?

i use pinecone, the require is knowledge base, but the knowledge base must provide data like PDFUrlKnowledgeBase etc, but how if i already have vector database, how to use it on chat as knowledge base, i have try to not include data source but its become erorr

orker_thread 2025-02-20 02:00:03 | return await future 2025-02-20 02:00:03 | ^^^^^^^^^^^^ 2025-02-20 02:00:03 | File "/usr/local/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 962, in run 2025-02-20 02:00:03 | result = context.run(func, *args) 2025-02-20 02:00:03 | ^^^^^^^^^^^^^^^^^^^^^^^^ 2025-02-20 02:00:03 | File "/usr/local/lib/python3.12/site-packages/starlette/concurrency.py", line 49, in _next 2025-02-20 02:00:03 | return next(iterator) 2025-02-20 02:00:03 | ^^^^^^^^^^^^^^ 2025-02-20 02:00:03 | File "/usr/local/lib/python3.12/site-packages/agno/playground/sync_router.py", line 92, in chat_response_streamer 2025-02-20 02:00:03 | for run_response_chunk in run_response: 2025-02-20 02:00:03 | ^^^^^^^^^^^^ 2025-02-20 02:00:03 | File "/usr/local/lib/python3.12/site-packages/agno/agent/agent.py", line 534, in _run 2025-02-20 02:00:03 | for model_response_chunk in self.model.response_stream(messages=run_messages.messages): 2025-02-20 02:00:03 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-02-20 02:00:03 | File "/usr/local/lib/python3.12/site-packages/agno/models/base.py", line 446, in response_stream 2025-02-20 02:00:03 | yield from self.process_response_stream( 2025-02-20 02:00:03 | File "/usr/local/lib/python3.12/site-packages/agno/models/base.py", line 420, in process_response_stream 2025-02-20 02:00:03 | for response_delta in self.invoke_stream(messages=messages): 2025-02-20 02:00:03 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-02-20 02:00:03 | File "/usr/local/lib/python3.12/site-packages/agno/models/openai/chat.py", line 375, in invoke_stream 2025-02-20 02:00:03 | raise ModelProviderError(e, self.name, self.id) from e 2025-02-20 02:00:03 | agno.exceptions.ModelProviderError: The server had an error while processing your request. Sorry about that! 2025-02-20 02:00:03 +------------------------------------