Deprecated function throws error
Information
🐛 Describe the bug
Notebook 3p-integrations/langchain/langgraph_rag_agent_local.ipynb in the cell when run on GPU machine or in Colab
# LLM
llm = ChatOllama(model=local_llm, format="json", temperature=0)
...
retrieval_grader = prompt | llm | JsonOutputParser()
question = "agent memory"
docs = retriever.invoke(question)
doc_txt = docs[1].page_content
print(retrieval_grader.invoke({"question": question, "document": doc_txt}))
Error logs
<ipython-input-5-e076046ccc4a>:8: LangChainDeprecationWarning: The class `ChatOllama` was deprecated in LangChain 0.3.1 and will be removed in 1.0.0. An updated version of the class exists in the :class:`~langchain-ollama package and should be used instead. To use it run `pip install -U :class:`~langchain-ollama` and import as `from :class:`~langchain_ollama import ChatOllama``.
llm = ChatOllama(model=local_llm, format="json", temperature=0)
---------------------------------------------------------------------------
ConnectionRefusedError Traceback (most recent call last)
[/usr/local/lib/python3.11/dist-packages/urllib3/connection.py](https://localhost:8080/#) in _new_conn(self)
197 try:
--> 198 sock = connection.create_connection(
199 (self._dns_host, self.port),
27 frames
ConnectionRefusedError: [Errno 111] Connection refused
The above exception was the direct cause of the following exception:
NewConnectionError Traceback (most recent call last)
NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7a106ccf5390>: Failed to establish a new connection: [Errno 111] Connection refused
The above exception was the direct cause of the following exception:
MaxRetryError Traceback (most recent call last)
MaxRetryError: HTTPConnectionPool(host='localhost', port=11434): Max retries exceeded with url: /api/chat (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7a106ccf5390>: Failed to establish a new connection: [Errno 111] Connection refused'))
During handling of the above exception, another exception occurred:
ConnectionError Traceback (most recent call last)
[/usr/local/lib/python3.11/dist-packages/requests/adapters.py](https://localhost:8080/#) in send(self, request, stream, timeout, verify, cert, proxies)
698 raise SSLError(e, request=request)
699
--> 700 raise ConnectionError(e, request=request)
701
702 except ClosedPoolError as e:
ConnectionError: HTTPConnectionPool(host='localhost', port=11434): Max retries exceeded with url: /api/chat (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7a106ccf5390>: Failed to establish a new connection: [Errno 111] Connection refused'))
Expected behavior
Running end to end without errors
Deprecated function throws error
Information
🐛 Describe the bug
Notebook
3p-integrations/langchain/langgraph_rag_agent_local.ipynbin the cell when run on GPU machine or in ColabError logs
Expected behavior
Running end to end without errors