im having a very banal issues it seems

do you have langchain installed

are you using a virtualenv?

try pip install langchain

i did just now. same error

not using a venv

this is all in a colab

Same for me, when importing servicecontext. With the same code that was working before

same issue here

I feel like I am on my first day with llama index lol

pip install llama-index

try this

i did this

from llama_index import ServiceContext

try this then

same issue

Same with regular setup that worked 1000 times

@Logan M anything with new version?

very basic use case here. installing llama-index and trying to do a hello-world 😄

Oh, looks like the latest version of Langchain has some breaking changes...

If you roll back to this it should work:

pip install langchain==0.0.281

Yea PR to fix it here
https://github.com/jerryjliu/llama_index/pull/7714

Just downgrade langchain for now

@Logan M Thanks, saved my day... again!

Published a new release -- v0.8.29.post1 -- should be on pypi soon 🙂

came here looking for same thing heh