Cannot import name 'create_model' from 'langchain_core.runnables.utils'

ShenSeanChen commented 3 months ago

Checked other resources

[X] I added a very descriptive title to this issue.
[X] I searched the LangChain documentation with the integrated search.
[X] I used the GitHub search to find a similar question and didn't find it.
[X] I am sure that this is a bug in LangChain rather than my code.
[X] The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

ImportError Traceback (most recent call last) Cell In[68], line 2 1 # Build graph ----> 2 from langgraph.graph import END, StateGraph 4 workflow = StateGraph(GraphState) 5 # Define the nodes

File ~/Desktop/Dev/AI-Agent/ai-agent-env/lib/python3.9/site-packages/langgraph/graph/init.py:1 ----> 1 from langgraph.graph.graph import END, START, Graph 2 from langgraph.graph.message import MessageGraph, MessagesState, add_messages 3 from langgraph.graph.state import StateGraph

File ~/Desktop/Dev/AI-Agent/ai-agent-env/lib/python3.9/site-packages/langgraph/graph/graph.py:31 29 from langgraph.constants import END, START, TAG_HIDDEN, Send 30 from langgraph.errors import InvalidUpdateError ---> 31 from langgraph.pregel import Channel, Pregel 32 from langgraph.pregel.read import PregelNode 33 from langgraph.pregel.types import All

File ~/Desktop/Dev/AI-Agent/ai-agent-env/lib/python3.9/site-packages/langgraph/pregel/init.py:46 36 from langchain_core.runnables.base import Input, Output, coerce_to_runnable 37 from langchain_core.runnables.config import ( 38 RunnableConfig, 39 ensure_config, (...) 44 patch_config, 45 ) ---> 46 from langchain_core.runnables.utils import ( 47 ConfigurableFieldSpec, 48 create_model, 49 get_unique_config_specs, 50 ) 51 from langchain_core.tracers._streaming import _StreamingCallbackHandler 52 from typing_extensions import Self

ImportError: cannot import name 'create_model' from 'langchain_core.runnables.utils' (/Users/UserName/Desktop/Dev/AI-Agent/ai-agent-env/lib/python3.9/site-packages/langchain_core/runnables/utils.py)

Error Message and Stack Trace (if applicable)

No response

Description

I was trying to import StateGraph from langchain.graph and it kept returning the error of 'create_model' not available in langchain_core.runnables.utils