ConnectionError

[nxby]

Hi, I'm trying to run custom_agent.py on my computer, when it comes to this line of code:
chain_results = run_on_dataset( client, dataset_name="Titanic CSV Data", llm_or_chain_factory=get_chain, evaluation=eval_config, )
it generates an error message:
ConnectionError: HTTPConnectionPool(host='localhost', port=1984): Max retries exceeded with url: /sessions (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x000001D88859A3A0>: Failed to establish a new connection: [WinError 10061] No connection could be made because the target machine actively refused it'))

I'm running under Windows with Python 3.9.7.
Has anyone seen this error before? Thanks!

[hinthornw]

Looks like you're trying to connect to a local instance of langsmith. What happens if you run langsmith status in your terminal?

[nxby]

Looks like you're trying to connect to a local instance of langsmith. What happens if you run langsmith status in your terminal?

Hi William FH (@hinthornw) , thanks for your reply! When I run langsmith status in my terminal (in Windows 11), I get this message:
Error checking LangSmith server status.

Could you give me some ideas on what I should do next? Thanks!

[lekpeng]

Hello I encountered a similar issue, do make sure you load the env before running the langsmith client.

from dotenv import load_dotenv
from langsmith import Client

load_dotenv()
client = Client()