Error while trying to invoke Tavilysearchresults tool in Langgraph. 'AttributeError("\'FieldInfo\' object has no attribute \'raw_results\'")'

[Acnokal]

I am trying to do the tutorials in langgraph and I am facing issue while trying to use Tavily as a tool. This is the code I am running.

from langchain_community.tools.tavily_search import TavilySearchResults
tool = TavilySearchResults(max_results=2)
tools = [tool]
response = tool.invoke("whats a node in langgraph?")
response

This is the error message - 'AttributeError("'FieldInfo' object has no attribute 'raw_results'")'

I have upgrades all my libraries and I even changed the API key for Tavliy. I am not sure what mistake I am making.

[hwchase17]

I believe you have an outdated version of langchain-core. Can you try updating langchain-core to the most recent version (0.3) and trying again

This is caused as part of moving from pydantic 1 to pydantic 2 :/

[brbernardo90]

Hello! I have the same problem. I checked my langchain-core, and it is 0.3.0:

Name: langchain-core
Version: 0.3.0

Name: pydantic
Version: 2.9.1

from langchain_community.tools.tavily_search import TavilySearchResults

search = TavilySearchResults(max_results=2)
search_results = search.invoke("what is the weather in SF")
print(search_results)

I got the same error msg: AttributeError("'FieldInfo' object has no attribute 'raw_results'")

[meghanshram]

I also have the latest version but still getting the same error

[Acnokal]

This could be due to outdated version of langchain core or some other libraries. I have installed /upgraded and it didn’t work. But when I restated the kernel in Jupyter it worked. I guess it could be as simple as that.

[Joshuaweg]

There is more to this issue. I am using the versions and I am still getting the same error.

[bridgesra]

Same issue for me. Restarting Jupyter does not help. using langchain-core-0.3.19